When Griff leaves Pete's house at the beginning of the movie, he opens the front door in bare feet, then comes out of the front door in white socks.
When Griff is at the hospital to find out how his friend is, he goes into the toilet stall wearing brown leather shoes, but comes out wearing sneakers.
When Pete starts to head down from the tree you can clearly see a safety rope come out from behind the tree.
The local TV news portrays a station named "WLV", an identity used only in the eastern U.S., yet the film is full of visual depictions of Southern California (L.A. street signs, L.A. Times, Calif. license plates).