So NBC has a series called Chuck, about a an average nerdy guy who gets an entire intelligence data system downloaded to his brain. He is then paired with a hottie CIA agent and a stiff NSA agent to find and deal with intel threats.
In last weeks' episode, a high school classmate of the CIA agent bumps into her and Chuck ends up identifying the classmate's husband as an intel threat. That character in Chuck was named Mark Ratner.
Being part of a high school theme, the inside joke was that Mark Ratner was the name of the kid who worked at the movie theatre and wanted to date Jennifer Jason Leigh in Fast Times at Ridgemont High. Something like this is not an accident, and it is put in there for the amusement of the writers and trivia geeks like me who pick up on such things.