Conversation so far:
What prompted P.G. Wodehouse to go to Hollywood?
P.G. Wodehouse went to Hollywood because Bolton was working as a highly paid writer for Metro-Goldwyn-Mayer
Did P.G. Bolton write a screenplay in Hollywood?
The dialogue of the movie Those Three French Girls was written by P. G. Wodehouse.

Question: Why didn't he have success?
Self-contained rewrite: Why didn't P.G. Wodehouse have success working for MGM Studios in Hollywood?