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Plot Summary

Planetarium (2017) Plot Summary Explained

Release, runtime and language
2017 · 105 min · English
Echo score 49
JustWatch #5,755 7
Directed by
Rebecca Zlotowski
Starring
Natalie Portman, Amira Casar, Louis Garrel, Lily-Rose Melody Depp, David Bennent, Camille Lellouche

In Paris, two sisters with a reputation for possessing unusual abilities find themselves at the center of a captivating performance on the city’s vibrant stage. A visionary film producer becomes intrigued by their enigmatic presence and rumored connections to the supernatural. As he delves deeper into their world, he is drawn into a mesmerizing journey where the boundaries of reality become increasingly unclear, and long-held secrets threaten to surface.

On this page (6)
  1. 1 Where to watch
  2. 2 What happens: full plot
  3. 3 Plot questions answered
  4. 4 Movie threads
  5. 5 Movies like Planetarium
  6. 6 Every angle

Where to watch

Where to Watch Planetarium (2017)

Where can you watch Planetarium? Stream, rent or buy it in the US, including on Chai Flicks, Hoopla and Kanopy: current JustWatch availability with up-to-date prices.

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Full plot summary · contains spoilers

What Happens in Planetarium: Full Plot Summary

The whole story of Planetarium (2017) explained, from the opening scene to the final frame: every key event, every twist and what it all adds up to. Read it as a quick recap before the sequel, to check a scene you missed, or to finally understand what really happened.

In the late 1930s, two American sisters, Laura and Kate Barlow, embark on a journey to France to showcase their unique talent of performing séances at various cabarets. In these performances, Laura takes on the role of the host while Kate, with her innate ability, channels spirits, captivating audiences with their act. Their public séance catches the eye of French film producer Andre Korben, who, impressed by what he witnesses, invites them for a more intimate private session. During this encounter, he becomes enchanted by a spirit that appears, igniting a spark of creativity within him.

However, Korben finds himself stifled by the stagnant French film industry and seeks to innovate by capturing a séance on film. Unfortunately, the results are far from impressive, leading to reels that appear ludicrous. Nonetheless, Korben finds his interest piqued by Laura, who, despite lacking genuine spiritualist beliefs, possesses a captivating visage that photographs beautifully. To blend the boundaries between art and reality, the film crew then concocts a conventional script where Laura delicately navigates a love triangle, portraying a medium who channels the spirit of a widower's deceased wife, thereby confusing him as he grapples with his feelings for both the medium and his lost love.

As Laura and Kate settle into Korben's home, his charm and generosity provide them with comfort. However, tensions rise as Korben continues to hold private séances with Kate, stirring unease within Laura, who harbors suspicions about her sister's involvement and Korben's true intentions—fearing his fascination with the supernatural may be more than just artistic. As circumstances unfold, Laura is compelled to depart for the coast to advance filming, leading Korben to take Kate to a metaphysical scientist to film their séances together.

On the coast, Laura becomes increasingly aware of the shifting social climate as anti-Semitism rises, presenting a growing threat to Korben. Whispers about his past and scandalous rumors begin to circulate, culminating in a troubling revelation when someone scrawls an anti-Semitic slur on her mirror. Eventually, when Korben and Kate seek to reunite with Laura, it becomes apparent that Korben has little to show for his efforts to capture the ethereal on film, as he presents a collection of underwhelming footage. Following this, the director, frustrated by Korben's mismanagement of resources, walks away from the project, blaming it on the futile chase after spirits.

Amidst these tumultuous events, Kate falls seriously ill, revealing that her visions are genuine and not mere illusions—she is facing leukemia, a devastating diagnosis during that era. Korben's financial failures lead to his arrest for squandered investments, resulting in his losing French citizenship.

Years later, with the tragedy of Kate's passing and Korben's grim fate in a death camp, Laura fortuitously encounters Eva, an actress from her past. With her assistance, Laura secures a role in a film directed by her former collaborator. Having distanced herself from spiritualism and the turmoil surrounding Korben, Laura finds herself on a promising path in the film industry amidst the challenging backdrop of Nazi-era France.

Last updated: September 18, 2026 at 08:59

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Plot questions answered

Planetarium Plot Explained: Your Questions Answered

The questions people ask most about Planetarium (2017): what happens in the confusing scenes, why the characters do what they do, the twists, hidden details and what the ending means. Each answer contains spoilers.

Q1

Why does André Korben become so obsessed with filming a séance?

Korben feels creatively stifled by the stagnant French film industry of the late 1930s and sees the Barlow sisters' séance act as a way to break new ground. In Planetarium, his fascination quickly outgrows cinema, as he becomes emotionally and erotically drawn to the spirit world itself, which eventually clouds his judgment and contributes to the collapse of the entire film project.

  • korben
  • séance
  • obsession
  • french film industry
  • creative vision
Q2

Is Kate's ability to see spirits actually real?

Yes. While the sisters' cabaret act is presented as a performance, Kate's terminal leukemia diagnosis in Planetarium reveals that her ability to perceive spirits is genuine. Her illness gives her gift a tragic weight, transforming what had been stage trickery into a sincere and haunting window into another world.

  • kate barlow
  • spirits
  • visions
  • supernatural
  • leukemia
Q3

How does Kate's leukemia connect to her spiritual visions?

Kate's confession that her visions are genuine comes alongside her leukemia diagnosis, suggesting that her proximity to death allows her to perceive the boundary between the living and the dead. Her terminal illness turns her supernatural ability into something deeply personal in Planetarium, foreshadowing both her own passing and her role as a conduit for spirits.

Foreshadowing: Earlier scenes hint at Kate's fatigue and fading health, which the audience may overlook because they are framed as part of the séance performances.

  • kate
  • leukemia
  • visions
  • illness
  • death
Q4

Why does Laura grow jealous of Korben's private sessions with Kate?

Laura suspects that Korben's fascination with the supernatural masks a sexual or romantic obsession with the spirit world, and by extension with Kate, who can access it. As the two spend increasing time alone during private séances in Planetarium, Laura fears she is being sidelined in both her sister's life and Korben's creative and personal attention.

  • laura
  • jealousy
  • korben
  • kate
  • private séances
Q5

Why is André Korben arrested and what ultimately happens to him?

Korben is arrested for squandering investor funds on the failed film project after the footage he produced fails to convince backers. His trial results in the loss of his French citizenship, and with the rise of Nazi power in France, he is ultimately deported to a death camp, where he perishes. His downfall in Planetarium is driven by both financial mismanagement and the racial politics of the era.

  • korben
  • arrest
  • investor funds
  • citizenship
  • death camp
Q6

How does rising anti-Semitism affect the characters in Planetarium?

Anti-Semitism is the political backdrop that gradually crushes the central characters. Rumors about Korben's Jewish heritage circulate, someone scrawls a slur on Laura's mirror, and his career and reputation are systematically destroyed. The hatred ultimately contributes to Korben losing his citizenship and being deported to a death camp, framing the story's supernatural elements against brutal historical reality.

  • anti-semitism
  • korben
  • nazi
  • france
  • historical backdrop
Q7

Why does the director walk away from the film project?

After Korben presents the footage he shot with Kate to investors, the results are underwhelming and lack any real substance. In Planetarium, the director blames Korben's obsession with chasing spirits rather than focusing on producing a coherent film, and abandons the project in frustration, leaving Korben professionally exposed.

  • director
  • film project
  • korben
  • investor
  • walk-off
Q8

Why does Laura decide to walk away from spiritualism?

After Kate's death from leukemia and Korben's deportation to a death camp, the world of séances becomes inseparable from personal trauma for Laura. To rebuild her life in Nazi-era France, she deliberately distances herself from spiritualism and re-enters the film industry on her own terms, choosing survival over the ghostly art she once performed.

  • laura
  • spiritualism
  • kate's death
  • korben
  • reinvention
Q9

What is the real love triangle between Laura, Kate, and Korben?

Beyond the on-screen love triangle in their film, Laura, Kate, and Korben share a complicated dynamic in which Korben is drawn to both sisters but especially fascinated by Kate's spiritual gift. Laura's jealousy and suspicion, combined with Korben's blurred interest in art, romance, and the supernatural, create a tension in Planetarium that mirrors and distorts the fictional story they are filming.

  • love triangle
  • laura
  • kate
  • korben
  • jealousy
Q10

Why does the footage of the live séance look so absurd?

Korben attempts to film a genuine séance as it happens, hoping to capture authentic spirit communication on camera. The supernatural elements simply do not translate to film, producing reels that appear ridiculous rather than revelatory, which forces the team in Planetarium to abandon the experiment and rewrite the project as a scripted love story instead.

  • séance footage
  • korben
  • film experiment
  • scripted rewrite
Q11

How does Laura manage to rebuild her career after everything falls apart?

Years after Kate's death and Korben's deportation, Laura serendipitously meets Eva, an actress from her past, who helps her secure a role in a film directed by a renowned collaborator. With the support of these industry connections, Laura steps away from spiritualism in Planetarium and re-establishes herself in French cinema during the Nazi occupation.

  • laura
  • career
  • eva
  • film industry
  • nazi-era france
Q12

What is the significance of the rewritten script about a medium and a widower?

After the failed live séance footage, the team scripts a film in which Laura plays a medium channeling the spirit of a widower's dead wife. The on-screen love triangle deliberately blurs the line between performance and reality in Planetarium, echoing the real emotional dynamics between Laura, Kate, and Korben and turning the film into a mirror of their own tangled relationships.

  • rewritten script
  • medium
  • widower
  • love triangle
  • art imitating life
Q13

What is the meaning of the anti-Semitic slur scrawled on Laura's mirror?

The slur on Laura's mirror is a visceral signal that rising anti-Semitism has reached her directly, not just as distant news but as a personal threat. It marks the moment in Planetarium when the political violence surrounding Korben spills into Laura's private life and foreshadows the catastrophe that will consume them both.

Foreshadowing: Earlier scenes already hint at whispered rumors about Korben's background, but the mirror turns abstract prejudice into an immediate, visible danger.

  • anti-semitic slur
  • mirror
  • laura
  • korben
  • prejudice

Movie threads

More Movies Like Planetarium, by Mood & Story

Curated lists built around what makes Planetarium tick: the same mood, the same kind of story or the same emotional payoff. Each list explains why these movies belong together.

Ghostly period dread like in Planetarium

Ethereal encounters collide with brutal history, leaving beauty and grief intertwined. Movies like Planetarium that blend eerie supernatural atmospheres with heavy historical drama. These are slow, atmospheric period films where mediums, ghosts, and uncanny visions coexist with real-world violence and loss. If you liked Planetarium's haunting blend of the ethereal and the brutal, these similar films deliver melancholic dread, complex characters, and emotionally weighty journeys through haunted worlds.

  • haunting
  • dreamlike
  • eerie
  • melancholic
  • oppressive
  • period
  • Tone: bleak, melancholic
  • Pacing: slow, atmospheric
Why these movies?

The story pattern: Films in this thread typically center on a sensitive protagonist who perceives what others cannot, often a woman with a gift for the unseen, navigating a society on the edge of collapse. The narrative drifts between intimate spiritual encounters and encroaching historical darkness, with the supernatural serving as both escape and indictment. Conflicts arise between exploitation of the gift, romantic entanglement, and the slow approach of catastrophe. Climaxes often sacrifice the visionary character while the world moves on, leaving the audience with a mixture of awe and devastation and an ending that feels neither triumphant nor fully resolved.

Why they belong together: They share a haunted, dreamlike register paired with bleak historical settings, slow atmospheric pacing, and an insistence that the supernatural cannot shield its characters from political violence or mortality. Tone, emotional weight, and complexity align tightly: heavy, complex, and bleak, with endings that linger uncomfortably between the spiritual and the historically catastrophic.

Art and fascism dramas like in Planetarium

Artists and dreamers are seduced by beauty while history closes in around them. Movies like Planetarium set inside the film industry or artistic circles of prewar Europe, where romance, creativity, and exploitation collide with the rise of fascism. Similar films explore love triangles, the exploitation of performers, and the devastating choices faced by artists under antisemitic regimes. If you liked Planetarium's blend of cinematic glamour and historical horror, these stories deliver complex characters, heavy emotional weight, and mixed, bittersweet endings.

  • oppressive
  • somber
  • atmospheric
  • romantic
  • period
  • morally complex
  • Tone: bleak, somber
  • Pacing: slow, deliberate
Why these movies?

The story pattern: These narratives usually orbit a magnetic but morally compromised impresario, director, or patron, alongside a performer whose talent and vulnerability attract both adoration and predatory interest. A third figure, often a rival lover, sibling, or conscience, complicates loyalties. The plot moves through rehearsals, shoots, salons, or seances that double as escapist refuges while political danger tightens outside. Climaxes force characters to choose between art, love, and survival, and the resolution is rarely clean: some are deported, some are sacrificed, and a few survive professionally but not personally, yielding a mixed ending colored by historical knowledge.

Why they belong together: They share a 1930s or wartime European setting, a film or artistic milieu saturated with glamour and unease, and a thematic preoccupation with exploitation, antisemitism, and the cost of complicity. Pacing is slow and character-driven, intensity is high, and the emotional weight comes from love, illness, and political violence converging on the same intimate circle.

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Every angle

Planetarium (2017) Explained: Plot, Timeline & Characters

Everything about Planetarium in one place: what happens in the plot summary, the timeline in chronological order, the characters and meaning and a spoiler-free summary. What's After the Movie adds the cast, box office and post-credit scenes.

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