The top mistakes in Up http://www.moviemistakes.com/film7846 en Sat, 21 Nov 2009 06:55:33 +0000 149661 At the part where the bulldozer hits Carl's mailbox, you can see the bulldozer in the first shot, but is gone after. 152980 When Russel is complaining, when he says "Zoology" his face is covered in dirt. When Carl tells him that he can do his business in the bushes, he is instantly clean. http://www.youtube.com/watch?v=lOjhfcBNZW8. 149785 When they fall off the house and can't get back on it Russell isn't wearing a backpack. After they decide to walk the house to the falls, Russel has his backpack. 151162 After trying to get his balloon back, Carl Jr. falls and breaks his arm. The ambulance that picks him up has a modern-day electronic siren, when in the 30's it would be a mechanical siren and would be much smaller.