Havana

Jack agrees to help smuggle the radios because he is immediately drawn to Roberta. His attraction to her is the primary motivation, though he also feels a tug of conscience toward the revolutionary cause. Without his personal feelings for Roberta, he would likely have refused the dangerous request.

Earlier on the boat, Jack's initial hesitation turns to agreement the moment Roberta appeals to him directly, showing his vulnerability to her charm.

Roberta disappears because she is emotionally devastated by her husband's reported death and traumatized from being tortured in custody. She leaves to process her grief and decide her next move, not because she rejects Jack but because she is overwhelmed by the loss of her husband and her own suffering.

The text notes she lets him shelter her but disappears that afternoon, indicating she needed time alone to cope.

Jack sells a diamond that was planted under the skin of his arm when he was young as a form of insurance. He goes to a doctor to have it removed, then to a jeweler to sell it, using the proceeds to fund the bribe required to free Dr. Duran from the secret police chief.

Jack tells Roberta that the lump on his arm contains a diamond he had planted there in his youth as insurance for difficult times.

Roberta chooses to stay with the revolution and her husband because her loyalty to the revolutionary cause and to Dr. Duran is stronger than her personal desire for safety with Jack. She understands the bandage on Jack's arm represents his sacrifice to save her husband, and she decides her place is with Duran and the new Cuba they fought for.

Jack's willingness to sell the diamond and risk everything to save Duran demonstrates the depth of his commitment, which ultimately allows Roberta to make her choice.

Duran was not dead. The newspaper reported his arrest and death, but in reality he was being held alive by the chief of the secret police. Jack learns the truth through his CIA acquaintance Marion Chigwell, which leads him to orchestrate the rescue mission using the bribery scheme.

Jack's decision to investigate further rather than accept the news at face value sets the rescue plan in motion.

Jack intentionally loses the high-stakes casino game because his priorities have shifted. After learning of Roberta's torture and committing to freeing Duran, winning the game no longer matters to him. His focus is on rescuing Roberta's husband, not personal financial gain. Casino manager Joe Volpi recognizes this and forgives him.

The text states Jack blows the big game with high rollers, for whom he had been angling since arriving, but chooses Roberta's safety over personal glory.

Jack maintains his annual vigil because he still holds hope that Roberta will one day come to him, even though he knows the ferry no longer runs. The ritual represents his enduring love for Roberta and his unwillingness to fully let go of the dream of being together. It also marks his personal transformation through the events in Cuba.

The final scene mirrors Jack's earlier journey to find Roberta at Duran's estate, showing his persistent hope against logic.

At the end, Chigwell tells Jack he is working on a new book called The Cuisine of Indochina. This encounter highlights the strange contrast between Jack's dangerous involvement with the revolution and Chigwell's seemingly innocuous literary pursuits, underscoring how the characters have moved on from their Cuban entanglement into different futures.

Chigwell's earlier cooperation with Jack was based on intimidation and deception, making his cheerful talk of a new book feel oddly disconnected.

Jack falls genuinely in love with Roberta despite knowing she is married. His willingness to risk everything stems from the depth of his feelings combined with his growing moral conscience about the revolution. He also feels responsible after learning of her torture and her husband's fate. His romantic nature and sense of honor drive him to extreme sacrifice.

Jack's agreement to smuggle radios was initially motivated by attraction, which deepens into love as he witnesses her suffering and courage.

On New Year's Eve 1959, the Cuban revolution succeeds and the revolutionary forces take control of Havana. The streets erupt in wild celebration as the upper class and secret police scramble to flee. Revelers trash the casinos in an expression of the seismic political shift that has occurred.

The build-up throughout the film, from the smuggling operation to the arrests and violence, culminates in this moment of revolutionary victory.