Deliberate mistake: In the final shot of the film, Jill's head moves slightly when she's supposed to be dead. In the commentary, Wes Craven confirmed this wasn't strictly intentional, but he decided to leave the take in on purpose in case he decided to bring her back in a future installment. But unless a sequel proves she's still alive, it's technically a mistake, albeit a deliberate one.
Scream 4 (2011)
Ending / spoiler
Directed by: Wes Craven
Starring: Courteney Cox, David Arquette, Neve Campbell, Lucy Hale
Jill and Charlie are the killers. Jill kills Charlie with the intent of framing him for the murders and making it look like Jill is the hero, just like Sidney was. Jill stabs Sidney to keep her quiet and then makes it look like Charlie killed Sidney and Jill saved the day. Jill is taken to the hospital, but finds out that Sidney survived. She tries to kill Sidney, who eventually electrocutes her and shoots her. But the media reports that Jill is a hero, meaning that she got what she wanted.
More mistakes in Scream 4
Rachel: A fucking 'Facebook' killer... You're kidding me right?
Chloe: I guess now it would be Twitter, that'd make more sense.
Trivia: Towards the beginning of the movie when Emma Roberts and Hayden Panettiere are standing in the hallway next to their lockers at school, next to them is a bust of Henry Winkler's character who played the principal in the first film and was killed.
Question: In the final shot, we see Jill's head move a little. Was that suppose to let the viewers know that she's alive or was it just a mistake?
Answer: I actually read that they noticed this before the movie came out and left it in to keep the ending ambiguous and since they were planning to make Scream 5, they felt that would possibly be the way to go.
That's very interesting, especially now that Scream 5 is finally getting made. Although it doesn't appear that Emma Roberts is returning.
Answer: I personally submitted this as a revealing mistake. There is no official statement from Wes Craven or anyone else involved in the making of the movie about it being deliberate. So in my eyes, it's a mistake.
THGhost