Morituri

Complex bit, as German merchant ship captain Mueller (Yul Brynner) realizes Marlon Brando might be (in fact, is!) a spy and saboteur working for the Brits, but accepts his thanks, having just vouched for him with his Nazi superiors, before he confronts his new passenger (Janet Margolin), whom he has deduced is a Jewish refugee, in Morituri, 1965.

Clever shooting, Academy Award-nominated cinematography by Conrad Hall, with director Bernhard Wicki, following Marlon Brando as Nazi defector engineer Crain, blackmailed by the Brits into posing as a Gestapo officer in order to defuse the self-destruct system on a German merchant ship carrying precious rubber from Japan, in Morituri, 1965.

First scene for both, British Colonel Slatter (Trevor Howard) in India advises "Crain" (Marlon Brando) that he knows he faked his identity, and he's about to help the allies, in Morituri, 1965, from the novel by Werner Joerg Luddecke.

Posing as an SS officer catching a lift from Japan to occupied France, but actually a German defector working as an undercover British agent, Crain (a.k.a. "Kyl," Marlon Brando) tangles with the suspicious German merchant ship captain Mueller (Yul Brynner), Nazi 2nd officer Kruse (Martin Benrath) steering clear, in Morituri, 1965.