. "Duffy of San Quentin"@en . . . . . . . . . . "4680.0"^^ . "Duffy of San Quentin is a 1954 American drama film directed by Walter Doniger and written by Walter Doniger and Berman Swarttz. The film stars Louis Hayward, Joanne Dru, Paul Kelly, Maureen O'Sullivan, George Macready and Horace McMahon. The film was released by Warner Bros. on December 14, 1954."@en . . . . .