Will Poulter (Kenny) stayed up late while listening to "Waterfalls" by TLC, to have his character rap along in a scene involving the song. Poulter personally chose the song because he considers himself a hip-hop fan.
The cast played a prank on Jennifer Aniston by playing the Friends (1994) theme song ("I'll Be There For You" by The Rembrandts) instead of TLC's "Waterfalls" during a take. This was the last clip used in the bloopers.
Despite the subject matter, no character is ever seen consuming marijuana.
Scottie P. says "You know what I'm saying?" a total of 11 times during the movie (Extended Cut).
It can be assumed that David named his family the Millers after his apartment complex, 200 Miller Street Apartments, located on N. Miller Street.