The top mistakes in National Lampoon's Christmas Vacation http://www.moviemistakes.com/film875 en Sat, 04 Feb 2012 06:55:40 +0000 5363 In an early shot of the outside of the house, the motorhome that Eddie and family show up in is parked in the driveway. The problem is, they don't appear until much later in the film. 5361 At one point when Clark is flying down the hill through snow drifts on his saucer sled after greasing it up you can see the guide wire pulling the sled. 18354 When Clark and Eddie are standing next to the Christmas tree drinking eggnog, when Eddie walks over to the decoration and knocks it over, in one shot his glass is less than half full and in the next it is almost completely full and he takes a gulp. 10653 When Clark is sliding down the hill on the sled, several times you can see fins on the bottom of the sled to help whoever was riding the sled control the direction a little better. When Clark is rubbing the oil on the bottom of the sled before he starts the sled is completely flat on the bottom. 5364 When the Griswold's are driving to the tree farm, they are being harassed by the rednecks in the truck.  Several shots of the front of the truck show only two passengers, but one view of the truck through its rear window shows three passengers.