Bad characters = Bad movie
I have no respect for these characters so watching them act like idiots is more pathetic than it is amusing. Since this video lacks any witty or observant social commentary or any indication that there is any force at all causing them to be retarded I can only assume that the humor stems from observing human beings exhibit a peacock-sized brain. Instead they come off as mere idiots lacking integrity thus making this movie more depressing in a sense that these traits seem to flourish amongst us.