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.

Question: What was his first part?
Self-contained rewrite: What was Harrison Ford's first part?