<P> Ilsa confronts Rick in the deserted café . When he refuses to give her the letters, she threatens him with a gun, but then confesses that she still loves him . She explains that when they met and fell in love in Paris in 1940, she believed her husband had been killed attempting to escape from a concentration camp . While preparing to flee with Rick from the imminent fall of the city to the German army, she learned Laszlo was alive and in hiding . She left Rick without explanation to nurse her sick husband . Rick's bitterness dissolves . He agrees to help, letting her believe she will stay with him when Laszlo leaves . When Laszlo unexpectedly shows up, having narrowly escaped a police raid on a Resistance meeting, Rick has waiter Carl spirit Ilsa away . Laszlo, aware of Rick's love for Ilsa, tries to persuade him to use the letters to take her to safety . </P> <P> When the police arrest Laszlo on a minor, trumped - up charge, Rick persuades Renault to release him by promising to set him up for a much more serious crime: possession of the letters . To allay Renault's suspicions, Rick explains that he and Ilsa will be leaving for America . </P> <P> When Renault tries to arrest Laszlo as arranged, Rick forces him at gunpoint to assist in their escape . At the last moment, Rick makes Ilsa board the plane to Lisbon with Laszlo, telling her that she would regret it if she stayed--"Maybe not today, maybe not tomorrow, but soon and for the rest of your life ." Strasser, tipped off by Renault, drives up alone . Rick shoots him when he tries to intervene . When policemen arrive, Renault pauses, then orders them to "round up the usual suspects ." He suggests to Rick that they join the Free French in Brazzaville . As they walk away into the fog, Rick says, "Louis, I think this is the beginning of a beautiful friendship". </P> <P> The play's cast consisted of 16 speaking parts and several extras; the film script enlarged it to 22 speaking parts and hundreds of extras . The cast is notably international: only three of the credited actors were born in the United States (Bogart, Dooley Wilson, and Joy Page). The top - billed actors are: </P>

This could be a beginning of a beautiful friendship
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