Joel mentions it.
"Let them play chant"
Crowd chanting "Let them play! Let them play!" after the group bursts into Beerfest
the audience chants "Let them play! Let them play!"
Mentioned when discussing Leonard Goldberg.
The team watches this movie while in the hotel on the way to Houston.
When the campus police come for Felix before the rugby match, the crowd starts chanting "Let him play" which is a spoof of the famous scene in the Astrodome from Bad News Bears in Breaking Training.