Deliberate "mistake": Linus and Rusty are standing in the Botanical Garden at the Bellagio going over Linus' observations. Rusty has a cocktail glass of shrimp in hand. When they change angles he has a plate in his hand, then change back, it's a glass.

Plot hole: Where do the flyers come from that are in the bags that are carried out of the vault and into the van? Danny and Linus couldn't have taken them down there and there is no room with the Chinese man, and they are carried out to the van before the SWAT team appears, so they had to be in the vault to start with? [On the DVD version the audio commentary with Steven Soderbergh, he states that getting the bags of flyers into the vault is an error and that even he doesn't know how they would have gotten down there.]

Plot hole: Walsh, the casino manager, is with Saul Bloom, watching the briefcase being put into the vault. However, at the exact same time, Walsh is seen escorting Frank Catton from the building.

Continuity: When Rusty is talking to Linus, giving him instructions, he is constantly eating an ice cream with a spoon. When he sets the ice cream down and leaves the room the entire ice cream is still there, two untouched scoops of ice cream. Obviously the cup was refilled during a cut.