Conversation so far:
What did Bradbury do in Hollywood?
There, Bradbury learned how to sneak in and watched previews almost every week.
Where did he sneak in?
Uptown Theater on Western Avenue in Los Angeles, the flagship theater for MGM and Fox.

Question: What else did he do in Hollywood?
Self-contained rewrite: Other than sneaking into Uptown Theater, what else did Ray Bradbury do in Hollywood?