Conversation so far:
How did Harrison Ford's career get started?
signed a $150-a-week contract with Columbia Pictures' New Talent program, playing bit roles in films.
When was he signed?
In 1964.
Did his career take off right away?
Ford traveled to Los Angeles to apply for a job in radio voice-overs.
He did not get it.
How long did it take him to rise to fame?
CANNOTANSWER.
What was his first part?
In 1964, after a season of summer stock with the Belfry Players in Wisconsin, Ford traveled to Los Angeles.
How was his performance with the belfry players?
CANNOTANSWER.

Question: What happened after he returned to Los Angeles?
Self-contained rewrite: What happened after Harrison Ford returned to Los Angeles from Wisconsin?