A Day at the Races (1937)

A veterinarian posing as a doctor teams with a singer and his friends as they struggle to save an upstate New York sanitarium with the help of a misfit racehorse.

Director: Sam Wood

Cast: Groucho Marx, Chico Marx, Harpo Marx, Allan Jones, Maureen O'Sullivan, Margaret Dumont, Leonard Ceeley, Douglass Dumbrille, Esther Muir, Sig Ruman, Robert Middlemass, Vivien Fay, Ivie Anderson, The Crinoline Choir, Hooper Atchley, King Baggot, Kenny Baker, Vivian Barry