MTV News gives Twilight the "Déjà Vu All Over Again" Award because of an editing mistake.
In the sunny, outdoor scene in which Jessica (Anna Kendrick) tells Bella (Kristen Stewart) that the Cullens aren't in school today, watch closely. As the school bell rings, you'll see an editing mistake that has two extras in the background getting up to leave for class, then doing it again moments later. ("Twilight") Click here to read more.
Source: MTVNews.com