At casino, during opening scene, you can clearly hear the worker vacuuming, but the vacuum bag is deflated.
When Chris is following Bill who is being held captive in the trunk of a car. The Mercedes SL that Chris is driving is clearly shown to have its convertible top down in many scenes, however whenever a close-up is taken of Chris driving, you can see his rear window which would indicate that the top is actually up.
The gasoline tanker clearly has no engine when exploding.
When Bills says, "It's Gina and the woman I love," his mouth doesn't move.
When Chris and Bill chase the thug in what is supposed to be Seattle, in one shot a bus with a Vancouver, B.C. red and white paint scheme can be seen. Also, Washington State ferries are green and white rather than the red, white and blue seen in the film.
When Bill sees Pam get up to use the bathroom, he says and records that it is 11.58am when it is clearly nighttime. It is obviously 11.58pm.