Elf - Man Spotted Camera
In the scene where Buddy the Elf is waiting for Michael to come out of school they start walking down the sidewalk. As they are walking, on the left side of the screen they pass a set of brown steps. Under those steps is located an open door - and a man in a hooded sweatshirt stoops over to pick something up and when he stands up he notices the camera is filming and he immediately realizes he is in the picture and quickly turns around and heads back under the steps. He is obviously part of the filming crew.