Spider-Man is on track to break a new record — but this one's kind of embarrassing. According to website Movie-Mistakes.com, fans have spotted at least 77 continuity glitches in the film — including disappearing knapsacks and clothes that are dirty one minute and clean the next. Spider-Man currently ranks as No. 9 on Movie-Mistakes.com's top 10 of boo-boo-ridden films.