The name of John Landis
' first film, and a phrase that he has used in every film
since, including the video "Thriller
", which he did for Michael Jackson
An example is in Coming To America, starring Eddie Murphy and Arsenio Hall, not to mention James Earl Jones. Just after Semmi (Murphy) proposes to Lisa, she turns him down. When he gets off the subway car, there is a movie poster on the wall that says, "See You Next Wednesday..."
It's become a sport between my brother and me, who can spot it first!