> In the last half of Horse Feathers Chico is limping. During the making of the movie, Chico was in a car accident and his kneecap was shattered.

> The football teams in Horse Feathers are named for the originator of the theory of evolution, Charles Darwin and biologist Thomas H. Huxley, Darwin's biggest supporter.

> The Marx Brothers appeared on the cover of Time magazine the week of August 15, 1932 to promote the film.

> Horse Feathers is one of over 700 Paramount Productions, filmed between 1929 and 1949, which were sold to MCA/Universal in 1958 for television distribution, and have been owned and controlled by Universal ever since.

> Horse Feathers was the second to last film the Marx Brothers made at Paramount; Duck Soup, made the next year in 1933, was their last. Duck Soup was also the last film to feature four Marx Brothers. Zeppo chose to work behind the scenes from there on out, even acting as the Marx Brothers agent for their 1938 film Room Service.

> Groucho Marx spent four undergraduate years at Brown University, spending most of his time attacking the university's policies in scathing editorials for the Brown Jug, the university's student-run humor magazine. In one of his attacks, he wrote "Millions for athletics, and not a cent for aesthetics" which turns out to be one of the major themes running throughout Horse Feathers.