Conversation so far:
When did Irving start with Universal ?
He found work as an office secretary at Universal Pictures.
What did the work as office secretary lead to ?
and later became personal secretary to the studio's founder and president.
How did becoming a personal secretary help his career ?
He earned $25 weekly, becoming adept at making insightful observations, which impressed Laemmle.

Question: What did he get involved with films ?
Self-contained rewrite: When did Irving Thalberg get involved with films?