The extra who pulls his manhood out
So I saw on VH1 a long time ago (you might have see it too) this thing about movies with goofs in them, and they mentioned movies in which the extras did things in the background to try to gain attention.
And in Teen Wolf, they talk about the last scene at the basketball game where I guess Michael J Fox and his team win the game (I haven't really seen much of the movie). As they all celebrate, you see an extra in the background who pulls his junk out and plays with it. Nobody on the film crew caught it, so this incident made it onto the final cut.
Anyway, I saw this part on AMC today, and I figured that by now that whatever producers would've noticed and cut that out or something. But nope. There it was clear as day: the extra and his stuff in his hand...on national television.
I just thought it was funny.