Blonde Crazy is a 1931 film by Roy Del Ruth, starring James Cagney, Joan Blondell, Louis Calhern, Ray Milland, and Guy Kibbee famous for the line "That dirty, double-crossin' rat!".

At a midwestern hotel, conniving bellhop Bert Harris has a finger in every pie. He promotes a job for glamorous Ann Roberts, but she does not immediately succumb to his charms. However, Bert soon enlists Ann as partner in his new profession of con man. Most of the victims they fleece are lawbreakers themselves. But Bert is tempted to try actual stealing, and Ann fears it will bring bad luck... Written by Rod Crawford