Blooper

When Gerald is being pursued by the fake police car the blue light changes locations from right to left.

When Truman enters the house after getting a call from his terrified wife, he racks the slide on his semi-automatic pistol to cock the hammer. But in the next view a couple of seconds later, the hammer is no longer cocked.

When the guy has just been thrown through the glass his right hand is on the railing, but in the next shot his left hand is on the railing.

At the beginning of the film and most of the way through, Truman Gates hair is long enough to be tied into a pony tail with a black ribbon, yet at the end of the move, when he's hugging his wife at the police station, his hair is shorter with no pony tail or ribbon.

When the two men are carrying the settee through the office door, the settee flips from showing the top to showing the bottom when it zooms in to one of the men talking.

During the shootout in the mob's office, Briar fires a shotgun at the first mobster who enters, knocking the man back and killing him. Yet there are no pellet holes in his clothing and no blood anywhere to indicate he was hit.

None of the semi-automatic and full-automatic firearms used in the film eject empty shell casings while they are being fired.

Near the beginning of the film, when Gerald and his pal are driving their van, it is obvious in some of the frontal views that there is no glass in the vehicle's windshield.

In the scene in the car where Truman informs Briar he is about to be a father and in many other scenes, Truman's Camaro has no rear view mirror.

Throughout the movie lines of dialogue are a mismatch for mouth movements. Especially for background characters, or main characters seen from oblique angles. Also, several scenes have acoustics mismatching the environment. For example dialogue in cars where the actors faces aren't visible, or the violin scene on the porch.

In the low-angle shot of Liam Neeson's character leaping from train to train, a camera is visible in the top right of frame, fixed to the roof of the right-hand train and also reflected in the windows of the left-hand train.