

A guerilla leader falls in love with a mysterious woman in World War II Lisbon.
Acting
Lamarr smolders; Lorre steals scenes with nervous energy.
Production
Warner Bros.' fake Lisbon is gloriously artificial.

Director
Jean Negulesco
Trivia, insights & behind the scenes
Lamarr developed frequency-hopping technology during this period—literally inventing the basis for Bluetooth and Wi-Fi while playing a spy on screen.
This was Warner Bros.' attempt to recapture Casablanca magic with the same two leads, but censorship crackdowns gutted the political bite.