Secret Agent (1936)

After three British agents are assigned to assassinate a mysterious German spy during World War I, two of them become ambivalent when their duty to the mission conflicts with their consciences.

Directed by: Alfred Hitchcock

Starring: Madeleine Carroll, John Gielgud, Peter Lorre, Robert Young, Percy Marmont, Florence Kahn

Links: IMDb, Movie posters, Movie stills