Continuity mistake: When Talia gives Larry a pair of glasses, a strand of hair is either falling over her cheek or tucked behind her ear, depending on the angle.
Continuity mistake: After Puss breaks out of prison he rides the giant Great Terror goose using coloured bunting as reins to steer and control her. In one medium shot the bunting has disappeared, but it magically reappears in the next close-up of Puss sitting astride the goose's neck.
Suggested correction: The rope is always there, if you pay attention.
Continuity mistake: When the trio are about to enter the maintenance tunnel under the cargo hold, there is nothing in the tunnel. Morgan tosses a single bag in to start crawling through it, but she crawls over another bag already in the tunnel. (00:57:30)
Continuity mistake: When Hal is showing his friend how the ring works and has to "recharge" it, his grip on the lantern changes between shots. (01:09:45)
Continuity mistake: When George Clooney is deciding whether or not his family's land holding will be sold to a corporation, he is sitting with two of his cousins. From a front view, his cousin, Hugh, opens a book. Then the shot switches to a side view, and it shows Hugh still opening the book.
Continuity mistake: When Boyle arrives in his police car at the house where McCormick is murdered, he turns off his engine and his windscreen wipers are pointing towards the sky. In the next shot you see the windscreen wipers in their normal position again.
Continuity mistake: When Tasha walks into Tyrone's bedroom, Tyrone is only wearing his boxers, but in the next shot he has grey joggers on.
Continuity mistake: In the restaurant scene Nathan has a glass in his right hand on the table. The next shot appears the glass on the table without his hand, and then again in Nathan's hand.
Continuity mistake: After Brendan throws off Koba's guillotine he goes in an arm bar trapping Koba's right arm, however when Koba slips out Brendan is shown pinning his left arm instead.
Continuity mistake: When a guy brings flowers to mourn for Mitch's wife, he is in the kitchen, stands up and runs to the door. When the angle changes, a frame later, he repeats all the previous movements.
Continuity mistake: Dylan and Jamie roll under a garage door with sandwiches in their hands. They both walk up the stairs with the sandwiches. As they exit the building onto the roof, there are no sandwiches in their hands. However, they are amazingly eating those sandwiches shortly after. (00:12:00)
Continuity mistake: In the scene where Skeeter is on the phone with the lady who is interested in the book, she has an ashtray with a lit cigarette in it. In the next shot it is gone and the cigarette is in her hand, the next time it shows her the ashtray is back in its original position.
Continuity mistake: In the scene where Adam and his parents are in the Doctor's office, after his mother states that she doesn't like the lady behind the desk, she gets up to look at a picture on the wall. Her hair is tucked in her jacket. In the next shot, her hair is back out.
Continuity mistake: In the scene where the mother and boss of the company is giving a speech, in one shot the puppy she is holding is resting on her shoulder; in the next shot it is lying in her arms, and then finally in the next shot it is back to resting on her shoulder.
Continuity mistake: At the end of the performance of she's so gone Stella and Olivia suddenly switch sides of the stage.
Continuity mistake: The overall timeline of the film is about twelve months but it is inconsistent as far as the seasons. When Blomkvist arrives at the Vanger's island, it is the dead of winter with deep snowfall. A short while later, when Blomkvist is talking to the detective on a pay phone (who asks if he is surviving the winter weather), the snow is gone and the deciduous trees have no leaves, but a few minutes later, when the scene cuts to Henrik Vanger being rushed to the hospital, it is suddenly the middle of summer, sunny and the trees are in full bloom. When Lisbeth arrives on the island, and she and Blomkvist are sitting outside at night talking, the trees close to the house are bare and a howling wind can be heard in the background, but the next day trees have leaves. Some weeks later, when Lisbeth saves Bloomkvist from Martin, it is winter again, with heavy frost on the ground and trees are bare once more. A little while after that, when Lisbeth and Blomkvist go to find Harriet, trees on the street are in full bloom. A day or two later, when Blomkvist is talking to Harriet in the park, it is apparently now early spring because the smaller deciduous trees are only just beginning to sprout new leaves while some bigger ones have none at all. At the very end, it's just before Christmas again.
Continuity mistake: In the scene where Billy is having ice cream with his daughter, watch the can of whipped cream change even though it wasn't picked up.
Continuity mistake: Multiple scenes: On every exterior shot of the train, you can only see one row of windows across the upper galley section. However, whenever there is a scene shot on the upper 'galley' level, there are two rows of windows, one right above the other. The external shots were filmed using a Chicago Metra train (which uses 'bilevel' galley cars), the internal scenes were filmed on a set in Montreal, Canada.
Continuity mistake: In the first PA, Katie says that the "ghost" was in front of her bed, however we never see it in PA3.
Continuity mistake: Kiefer Sutherland throws the suitcases a few steps in front of the middle of the stairs of the entrance of the house but when someone else picks them up, they are on a side of the stairs and close to them. (00:32:45 - 00:33:40)