Animal Crackers (1930)
- Plot summary, cast list, and reviews at the Internet Movie Database.
- http://us.imdb.com/title/tt0020640/

The Marx Brothers: Animal Crackers
- Review of the movie, plus plot line, cast, and information on a technicolor clip of the rehearsal.
- http://www.marx-brothers.org/watching/movie_detail.htm?movie_id=4&title=Animal%20Crackers&rel=1930&picture=ac.jpg

Suite101: Animal Crackers
- A look at the second Marx Brothers movie, Animal Crackers. Review of the movie and its directing.
- http://www.suite101.com/article.cfm/black_and_white_movies/43711

The Nitpickers Site: - Animal Crackers
- Index of nitpicks on the movie Animal Crackers.
- http://www.nitpickers.com/movies/titles/2847.html

Greatest Films: Animal Crackers
- Detailed review, synopsis, and discussion of the film.
- http://www.filmsite.org/anim.html