A nameless member

Continuity mistake: When Benedict pulls Leo's finger at the funeral to start the timer on the wristwatch, you can see that the timer was pre-set for ten minutes on the upper part of the display and the countdown is in the lower part of the display. There are two more shots of the countdown on the watch. First at 3:32 left when Jack knocks out the doctor and then at about 30 seconds left over the tar pits. Both of these shots show that a piece of silver tape has been applied to the upper half of the display, probably to cover a lower starting count so they wouldn't have to wait 10 minutes between shots. (01:07:50 - 01:18:05)

Visible crew/equipment: When Jack is in the real world, and he's playing chicken with the bad guy, as soon as Jack drives off on the ground, you can see a set of wires leading to Jack's car. (01:26:45)

Continuity mistake: Jack's shirt does not have bullet holes, as he walks up the stairs on the way to his apartment, but in the previous scene his shirt had bullet holes, as he packed up his stuff from his desk. (01:03:20)

Visible crew/equipment: When Benedict snaps his fingers and the dogs form a pyramid to show how well they are trained - look at the dog's feet and you can see the rails that the dogs are standing on. (00:43:50)

Revealing mistake: When the chopper is about to shoot out the elevator, on the right is a pair of guns and on the left a gatling gun. At the end of the scene the guns have switched places, with the pair being on the left and the gatling gun on the right. Flipped shot. (01:16:10)