Go to the part where Peter's hands start to grow little spider hairs. After he climbs the wall for the first time he is on the top of a really huge building. Peter runs backwards a little and then jumps over about 3 or 4 buildings. If you look closly between each of the builings there is a clothes-line. If you look carfully at the clothes-lines you can see that each clothes-line has the same exact clothes on them. This is a slip-up or a lot of people have the same clothes!