The passengers include numerous German citizens as well as Americans (including Lee Marvin and Vivien Leigh, in her final film appearance).
It's kind of a long film with several interconnected story lines. A reoccurring theme explores the German character's feelings and attitudes about the changing political climate of the country.
Among the Germans aboard is Jose Ferrer's character, an obnoxious publisher who won't stand to eat with anyone who is a Jew. Lee Marvin's character (a washed-up American baseball player) observes this behavior and asks someone "What's he got against the Jews?".
Oscar Werner plays the German ship's doctor, and he's good. All throughout the film he's politically agnostic, and later he's suspected of being Jewish. But the truth is never truly revealed to us. Instead, we learn that he longs for something more in life, and he longs to be with Simone Signoret's character, a humanitarian that he admires and adores.
The movie ends by showing all of the characters leave the ship, and the audience is left to wonder what is to become of them all throughout the 1930s and beyond. It's assumed that some of the Americans are just there in Germany for a short visit - Lee Marvin leaves the ship and quickly tries to meet a pretty young blond woman. And we assume that some of the Germans will grow to support the emerging Nazism, including an old woman (who previously showed sympathy to Jews) who greets and hugs her awaiting son - who is wearing a Nazi armband.
A very patriotic and proud German Jew (Heinz Rühmann) views the coming years optimistically, and is oblivious to any of the horrors that will emerge from Hitler's dictatorship. The ship's philosopher, Michael Dunn, says to him at one point "you might be the biggest fool on this ship".
With George Segal, Lilia Skala, Jose Greco, Elizabeth Ashley.
Director: Stanley Kramer
Writers: Katherine Anne Porter (novel), Abby Mann (screenplay)