Continuity mistake: Close to the end when Linus and Danny are going down the elevator shaft on the wires, when Danny says "go" to Linus, in the overhead shot you see Linus going down quite far ahead of Danny, yet Danny reaches the bottom before Linus. (01:20:35)
Continuity mistake: Early on when Rusty is teaching the actors to play poker, there's a scene when Rusty says "Shane, you've got three pairs...you can't have three pairs. You can't have six cards in a five card game." Look at Topher's (the man who wanted to pay Rusty by check) cards during this scene. At first, he's holding the cards up, then flat on the table, then back up again. (00:07:00)
Continuity mistake: In the scene where we first see Sol getting his ticket for the greyhound race, he grabs the ticket with his left hand, but in the following shot it is in his right hand. (00:22:25)
Continuity mistake: Danny and Linus look through the elevator door at the guards outside the vault, it's open to fit both their heads in, it's also like this from their POV shot. But when they throw the gas grenade, the door is all the way open and Danny has to stretch to close it. (01:25:25)
Continuity mistake: Danny's hairstyle changes dramatically in some scenes in the movie. Most notably when he and Rusty are in the office building looking at the blueprints of the hotel vault. It looks like he just got a haircut. In the previous scene and next scene his hair looks longer and styled different. (00:12:15)
Continuity mistake: When Rusty is talking to Saul at the race track, Rusty leans over to tell Saul what they are planning to do. Rusty moves his face to Saul's ear and begins to whisper. In the next shot he is looking away from Saul and whispering without turning his head. (00:24:15)
Continuity mistake: Towards the end of the film, there's a scene where Tess runs into Terry as she's getting off the elevator to go find Danny - Her hair is smooth and styled into a French twist. As she's walking down the steps into the casino, Terry calls after her and she turns to face him - This time, her hair is wavy and in a different style.
Continuity mistake: When Danny is leaving the prison in the beginning the camera from the back shows him walking with his hands at his sides. The camera changes to a view from the front and his hands are now in his pockets. (00:02:12)
Continuity mistake: At the end of the film, when all eleven members are in a line looking at the big fountain, and they each in turn walk off, the man on Rusty's left looks at him, then looks away again. But when the shot changes to the opposite direction, the same man looks away again. (01:48:00)
Continuity mistake: When Bruiser first punches Danny, Danny bends over to slap the table and Bruiser puts his hand on Danny's back. The camera angle changes and Bruiser now has one hand on Danny's back and the other on Danny's side. (01:18:40)
Continuity mistake: In the scene where Tess is stepping out of the elevator and she runs into Terry, her hair is in a sleek, perfectly-styled French twist. Then in the next shot when she turns to him and says, "You of all people should know, Terry, that in your hotels, there's always someone watching." Her hair looks messy and disheveled. (01:44:20)
Continuity mistake: Danny says the elevator needs a 6-digit code that is changed every 12 hours. Later when Linus presses them, he enters 1138, which is a 4-digit code. Matt Damon mentions this on the commentary.
Continuity mistake: When saving Linus (Damon) from guards chasing him at the lab, rear van door swings wildly, acrobat grabs it from the inside with his left hand and slams his hand in the door. He reacts by grabbing his injured right hand.
Suggested correction: He grabs the door with his right hand, not his left. He's sitting with the door to his right, if he reaches across his body to grab the door with his left hand, then his thumb would be on top. But it's not, so you know it's his right hand.
