A Boy Named Charlie Brown (1969)
This film's title is advertised on a marquee.
Vince Guaraldi's "Happiness Is" from this film is used in 'Bottle Rocket'.
Gunther dresses as Charlie Brown for the Halloween party.
In an Easter egg for "Comic", a soundtrack album for this movie can be seen
Music from this film is used.
A cardboard stand with the words "The Doctor is Out" is briefly seen, much like the one that Lucy van Pelt runs.
We see how Charlie Brown's and Snoopy's life ended up live decades after their fame faded.
Snoopy's "Red Baron Dogfight" sequence from "It's The Great Pumpkin, Charlie Brown" is used for Snoopy's nightmare in "A Boy Named Charlie Brown."
Played on Television at the hotel room.
In "No Such Luck", when the baseball hits Lynn, all her clothes fly out just like Charlie Brown's!