Conversation so far:
What did Dev Anand have in common with Gregory Peck?
Acquainted with the Bollywood actor, Gregory Peck's personal interactions with Dev Anand spanned four to five long meetings in Europe and Mumbai.
Did Gregory Peck and Dev Anand work together after four to five long meetings in Europe and Mumbai?
Dev Anand and Gregory Peck do not share any film credits among their films. I don't want to be known as India's Gregory Peck, I am Dev Anand, said Anand.
Did Dev Anand and Gregory Peck become friends?
Dev Anand said of his and Gregory Peck's second meeting, As expected, he nodded and I walked up to him. He remembered me and we exchanged pleasantries“

Question: What do they have in common ?
Self-contained rewrite: What do Dev Anand and Gregory Peck have in common?