Corrected entry: In the scene where Lloyd is talking to the person at the bar, the barman gives him another beer. In the first shot there are two bottles on the desk, however when he gets another, there is only one bottle. (01:15:43)
Corrected entry: Lloyd remarks that he sold some stuff to Billy in (apartment) 4C, yet when the "Gas Man" and his accomplice show up at Lloyd and Harry's apartment, it has a lone "4" on the door. Shouldn't it also have a letter? (00:20:15)
Correction: The apartment I live in is "C5", yet the only time I say "C" is when I talk to the manager or another resident. As far as my mail, I just say apartment 5.
Corrected entry: When Lloyd gets ripped off by the old lady, it is at night, however, when he arrives at the apartment distraught it is daytime. Either Lloyd walked very far to get the "bare necessities" for Harry and him, or there is a plain and simple error.
Corrected entry: When Harry leaves Mary's house after their date, he shifts the gear of the sports car down one notch. Wouldn't that be reverse?
Correction: On some sports cars, first gear is down.
Corrected entry: A police officer states that Harry and Lloyd were last seen heading west on I-80 towards Colorado. I-80 doesn't actually go into Colorado. (00:43:55)
Correction: I-80 doesn't go into Colorado, but it heads straight towards it, and it almost goes into the state, but it turns away only a few miles at most from the border, and then circles around the north side of the state very close to the border. So the cops could definitely have determined that they were heading towards Colorado, and the waitress probably overheard Harry and Lloyd's conversation with Mental about going to Aspen, and the cop said that he talked to her, so he could have figured where the boys were headed, and the siting report of them verified it.
Correction: If you watch closely as the bartender gives him the second beer with his left hand, his right arm is moving as though taking a bottle away.