Continuity mistake: When Sandra Bullock and Nicole Kidman are getting ready to bring back Nicole Kidman's jerk boyfriend from the dead, they are going to put him on a counter that has towels and other stuff on it. The camera shows them picking him up and putting him on the counter, and when they do, the towels and stuff are all gone, without them clearing it off. (00:36:40)
Continuity mistake: When Jillian is running away with her boyfriend for the first time, when they are getting ready to exchange blood for bonding, the camera cuts to her boyfriend on the ground below the deck. Right as Jillian says "honey", he begins taking out his pocket knife. When Jillian says "need your pocket knife", he has already thrown it up to them.
Continuity mistake: Just before Sally and Aidian kiss for the first time, (in the bedroom) they are talking about the disappearance of Gillian's boyfriend. There's one shot where Sally tucks some of her hair behind her right ear. She leaves a clump of it in front of her ear. A shot or so later, a lot less hair is in front of her ear. Just before they kiss, the large clump is back.
Continuity mistake: When Sally and Aiden are talking, Sally takes his badge. It's in her hand in one shot as she's explaining about it's symbolism and in the next, he's holding it.
Continuity mistake: When all of the women come to form the coven to drive the ghost out of Nicole Kidman, all of the women are standing holding the brooms. When Nicole gets up and rushes at them, all of the brooms are on the floor, and the women are standing back from them. Next scene, they are holding them again.
Continuity mistake: When Aidan Quinn is showing the letter to Sandra Bullock as he leaves the herb garden, the first shot is him tucking the envelope into his inner pocket in his jacket. The next shot, his hands are on his hips. The third shot, he's still tucking it away before he puts his hands on his hips.
Continuity mistake: During the Phone Tree meeting Sally places a spell on a woman that's talking trash about Gillian. When the woman flinches from what sounds like a whack on her hand, you can see Nicole Kidman's hair pushed back behind her ears, when they show a close up of her and Sandra Bullock right afterwards, Nicole's hair isn't behind her ears and looks like it never was.
Continuity mistake: In an early scene where the young Sally and Gillian are walking up to the aunts' house, the girls shown are the ones that play Sally's daughters and they're wearing velvet dresses. When they reach the aunts, the film shows the young girls that are actually playing young Sally and Gillian and they're wearing sailor type school girl uniforms.
Continuity mistake: Gilly is on the floor inside the circle formed by the other women to prevent her from escaping. Sally falls on her knees to be close to her sister. When the camera shows Gilly from Sally's position her head is turned right, when they are both in the shot Gilly's head is turned left
Continuity mistake: When Sally is talking to Gillian after the first failed exorcism attempt, we see Sarah is wearing white shoes; but when they are pouring the potion on the grave, she has brown sandals.