Films with four Marx Brothers
- The Cocoanuts (1929) 5
- Animal Crackers (1930) 6
- The House That Shadows Built (1931) 5 (This film was put out by Paramount Pictures to celebrate their 20th anniversary. The Marx Brothers appear in an eight-minute segment in which they perform the first act from their stage show called I’ll Say She Is, in which they apply for jobs with a theater. I found it on the Internet.)
- Monkey Business (1931) 5
- Horse Feathers (1933) 5
- Duck Soup (1933) 8
Films with three Marx Brothers
- A Night at the Opera (1935) 7
- A Day at the Races (1937) 5
- Room Service (1938) 5
- At the Circus (1939) 6
- Go West (1940) 7
- The Big Store (1941) 6
- A Night in Casablanca (1946) 6
- Love Happy (1949) 4
- The Story of Mankind (1957 – Not a Marx Brothers film, but the three brothers perform separate cameos) 2