Murder, My Sweet (1944)

Continuity mistake: Dick Powell puts his gun in his left trenchcoat pocket and then 2 minutes later takes the same gun out of his right pocket.

Philip Marlowe: She had more than a figure too. Not a beautiful face, but a good face. She had a face like a Sunday School picnic. You have any idea what kind of face that is, Nulty?
Detective Nulty: I wouldn't know.