Men of Chance is a 1931 American pre-Code drama film directed by George Archainbaud, starring Ricardo Cortez, Mary Astor, and John Halliday.

[1][2] A destitute Marthe Preston is in dire straits in Paris until gambler Richard Dorval comes to her aid.

In gratitude, she agrees to a scheme of Dorval's to seduce and wed his rival, "Diamond Johnny" Silk, then help ruin Johnny's horse-racing business interests.

Marthe's inside information enables Dorval and an accomplice, bookie Joe Farley, to bribe Johnny's jockeys to deliberately lose races or to help them influence the odds.

Martha has fallen in love with her husband, however, so she pretends to go along with a plot to poison Johnny's horse, double-crossing Dorval and rejoicing in Johnny's triumph.