Ray mentions it.
When Chris Vaughn sees his old friend Ray Templeton (Johnny Knoxville) for the first time, Vaughn calls him "Ray Ray," a reference to Knoxville's role as Ray Ray Perkins in "A Dirty Shame."
DVD for sale at petrol station
Poster is shown.
mentioned in passing by John Cena
a clip is shown in a montage of Dwayne Johnson's films