Famous encounters.

Went to college with Bradley Cooper, he was also a rower.
Also in college was on the same dorm room floor with Jonah Nolan (his brother is Christopher Nolan and he's gone on to write Memento, produced Person of Interest, West World etc) -- lots of stories about that guy.

Not really famous, but one of my good friends is the brother of Jared Bush who wrote and directed Zootopia and wrote Moana and is now a pretty big deal at Disney Animation -- one of the funniest men I have ever met.