Conversation so far:
When did Groucho Marx go to Hollywood?
1931
What was Groucho Marx's first movie?
Their first movie was a silent film made in 1921 that was never released, and is believed to have been destroyed at the time.
Why wasn't Groucho Marx's first movie released?
Their first movie was a silent film made in 1921 that was never released, and is believed to have been destroyed at the time.
What was a Groucho Marx movie that was released?
A decade later, the team made two of their Broadway hits—The Cocoanuts and Animal Crackers movies.
Did Groucho Marx star in any movies?
Marx made 26 movies, 13 of them with his brothers Chico and Harpo.

Question: What was it about Marx that was different?
Self-contained rewrite: What was it about Groucho Marx that was different?