Conversation so far:
What film has Patti LuPone been in?
Among LuPone's film credits are Fighting Back, Witness, Just Looking, The Victim, Summer of Sam, Driving Miss Daisy.
Has she won any awards?
She has twice been nominated for an Emmy Award.

Question: Who is a costar she had?
Self-contained rewrite: Who is a costar Patti LuPone had?