Corrected entry: When Harry, Joe, and Lloyd are at Dante's restaurant, notice the position of the brown pitcher sitting on the counter. It's almost in between Harry and Joe. When Joe moves the hot peppers, after Harry and Lloyd start gagging, the brown pitcher magically moves closer to the peppers. (00:41:40)
Corrected entry: When Lloyd and Harry are in the hotel room watching TV, they are crying while watching a phone company commercial. The commercial is for Pacific Bell. They are in Aspen. Colorado was a Mountain Bell state (that is to say, back when the phone company in Colorado was still known as "Mountain Bell"). It makes no sense that a "Pacific Bell" commercial would air in Colorado.
Corrected entry: Harry says to Lloyd (about him and Mary going skiing), "Yesterday was one of the best days of my life." Actually it was still the same day, only later at night, because Mary wanted Harry to pick her up that night at 7:45pm, and she left with Lloyd to go get the briefcase, when Harry was in the toilet. They all met up again in Harry and Lloyd's hotel room that night with the gunman there.
Corrected entry: Lloyd says that the $275,000 IOU inside the suitcase is substitute for the money they spent on a car. He is presumably referring to the red Lamborghini Diablo Harry drives in the movie. But the estimated cost for that particular model of the Lamborghini is not and never has been anywhere close to $275,000.
Corrected entry: In the restaurant scene where Lloyd is fighting with the chef, he rips out the chef's heart and puts it in a bag. Now watch carefully: when he rips it out, you can see the 'hole' and some blood. But after putting the heart in the bag and giving the bag to the chef, you can see that the hole is gone just as he is falling backwards. (00:33:39)
Corrected entry: The police woman says to Harry near the end: "Hey, Harry, you never called" at the bottom of the stairs just before Harry goes up to the room. How was Harry supposed to call her when he didn't have her number? When she tried to give it to him earlier at the gas station, she gave him half of her old phone number, and before she could give him the new one, she left.