Continuity mistake: As the "lone wolf" escapes on the bike, there's a fancy swooping camera shot which tracks him, cutting to a shot from the front just as he scythes between two dark cars and past a police car. In that quick shot a woman suddenly appears cowering by the police car who wasn't there before.
Continuity mistake: When Lloyd is dragging Claire through the maze he starts off with one type of flare gun at the boat and has an entirely different one inside the maze. (01:38:10 - 01:39:00)
Continuity mistake: During the firefight on the railcar where Six uses the bullet shield, it's a lot sunnier in some shots and obviously later in the day in others.
Continuity mistake: Six gets hit by a vehicle after escaping the cops in Prague. He has a cut on his right forehead. It changes through the scene and even moves during the firefight.
Continuity mistake: When Lloyd punches Fitzroy on the nose, the blood suddenly disappears between shots and the nose suddenly stops bleeding.
Continuity mistake: When Fitzroy convinces Six to become a CIA man, the pack of gum moves around between shots.
Continuity mistake: Suzanne's hair keeps changing from short to longer and back to short again throughout the movie.
Continuity mistake: Chris Evans takes his shoes off to fight in the final fight scene and then miraculously has them back on as he's shot and lying on ground.
Suggested correction: He doesn't take his shoes off. He takes one shoe off and tips it upside down, like there is a pebble or something in it, and then he puts it back on before he stands up to fight.