During the scene in which the homeless character portrayed by Steve Buscemi is having a conversation with Longfellow, he is eating a slice of his favourite pizza; French Fries & Oreos. In shot in the scene Buscemi takes a bite out of the slice of pizza, and there is one Oreo on the slice, toward the front of it. Then the shot goes to Longfellow for a moment, and in the next shot of Buscemi, the Oreo is suddenly at the other end of the slice. The Oreo continues moving from the front to the back of the slice throughout the scene.
When Pam tells Deeds she 'fell out of Boo Radley's apple tree', it's taken from 'To Kill a Mockingbird.'