At the beginning, when Michael catches Jesse stealing from his car, Jesse kicks Michael in the shin, just as Kurt Russell did to the real Elvis Presley in Rubias, morenas y pelirrojas (1963).
When the film finished shooting, Kevin Costner and Kurt Russell disagreed about the way the film should feel. The studio let both stars edit their own versions which were then shown to test audiences. Russell's cut was more comedy oriented and focused on his character's relationship with Cybil (Courteney Cox) while Costner's was more action oriented.
Kurt Russell made one of his early screen appearances in the Elvis Presley movie Rubias, morenas y pelirrojas (1963) and later played Elvis in a television movie directed by John Carpenter (Elvis (1979)). He also did the voice of young Elvis in Forrest Gump (1994).
The album that Michael autographs in the elevator is in fact the soundtrack to
Rubias, morenas y pelirrojas (1963), the movie where Kurt Russell kicked the shins of the real Elvis Presley.
As a child actor, Kurt Russell had a role in It Happened at the World's Fair (1963). 45 minutes into that movie, Elvis' character pays him a quarter to kick him in the shin. This makes Russell the only Elvis Presley impersonator in this movie to have shared the screen with the real King.