Cocoanuts (1929) - Robert Florey / Groucho, Chico, Harpo, Zeppo Marx.

Animal Crackers (1930) - Victor Heerman / Groucho, Chico, Harpo, Zeppo Marx.

Monkey Business (1931) - Norman Z. McLeod / Groucho, Chico, Harpo, Zeppo Marx.

Horse Feathers (1932) - Norman Z. McLeod / Groucho, Chico, Harpo, Zeppo Marx.

Duck Soup (1933) - Leo McCarey / Groucho, Chico, Harpo, Zeppo Marx.

A Night at the Opera (1935) - Sam Wood / Groucho, Chico, Harpo Marx.

A Day at the Races (1937) - Sam Wood / Groucho, Chico, Harpo Marx.

At the Circus (1939) - Edward Buzzell / Groucho, Chico, Harpo Marx.

Go West (1940) - Edward Buzzell / Groucho, Chico, Harpo Marx.

The Big Store (1941) - Charles Riesner / Groucho, Chico, Harpo Marx.

Love Happy (1949) - David Miller / Groucho, Chico, Harpo Marx.