Conversation so far:
What happened in 1961 with Tippi Hedren?
On October 13, 1961, Tippi Hedren received a call from an agent who told her a producer was interested in working with her.
Who called Tippi Hedren in 1961?
An agent from a producer.

Question: Then what happened?
Self-contained rewrite: Then what happened with Tipi Hedren after the call?