Three Men on a Horse is a 1936 American comedy film directed and produced by Mervyn LeRoy, adapted from the Broadway play of the same name written by George Abbott and John Cecil Holm.

Meek Erwin Trowbridge finally has enough of his sneering brother-in-law, Clarence Dobbins; unappreciative boss, greeting card publisher J.G.

When he overhears Charlie and Frankie bemoaning their bad luck betting on horses, he gives them his pick for the next race.

Erwin is upset, but Patsy gives him 10% of the winnings and convinces him that he can make more money betting than writing greeting card poems.

Following close behind, Carver (desperate to fulfill a contract for Mother's Day cards) offers Erwin a raise and a new office, which Audrey persuades him to take.