Continuity mistake: When Sidney is first going into the house for the end of the movie it is clear that she is not wearing the vest underneath her clothes and as she is walking around or when she is rolling on the ground fighting with her half brother you see her bellybutton but then she has the vest on and it goes over the belly button.
Scream 3 (2000)
Ending / spoiler
Directed by: Wes Craven
Starring: Liev Schreiber, Lance Henriksen, Emily Mortimer, Courteney Cox, Patrick Dempsey, David Arquette, Neve Campbell, Jenny McCarthy, Roger Jackson, Beth Toussaint, Kelly Rutherford
The killer draws Sidney to Miltons house with Gale and Dewey as hostages. He then chases Sidney before revealing himself.It's Sidney's long-lost brother, Roman Bridges, the director of Stab 3. He also claimed to have been the mastermind behind the murder of Sidney's mother, which was then the catalyst for Billy to start the killings in Scream! Roman shoots Sidney, supposedly killing her. Sidney then gets back up and stabs him revealing she was wearing a bulletproof vest. She stabs him three times. He then gets back up, seemingly invincible before Dewey puts a bullet in his head. Dewey proposes to Gale who accepts and Sidney lives happpily with Kincait supposedly living with her. Just before the movie ends a door swings open and Sidney smiles. The door suggests that they are literally leaving the door open for another sequel.
More mistakes in Scream 3
Roman: I'm gonna check this place out.
Tyson Fox: Woah, woah, just wait one damn minute! There's a psycho killer on the loose and you wanna go traipsing around this gigantic mansion? Have you ever actually seen the Stab movies? Every time this dude enters a room he ends up a god damn shishkabob.
More trivia for Scream 3
Question: Is there any significance to the code '1288' Sydney uses at her mountain hideaway?
Answer: Not expressly, though it could have been the date of some significant event (December of 1988) but someone as security-conscious as Sydney now is wouldn't be stupid enough to have her code be something that could be guessed.