Batman Begins (2005) - 10 mistakes
Directed by Christopher Nolan, starring Christian Bale, Cillian Murphy, Gary Oldman, Katie Holmes, Ken Watanabe, Liam Neeson, Michael Caine, Morgan Freeman
Please note: This is a "rebooting" of the Batman movie franchise, so any mistakes relating to discontinuity between this movie and any of the earlier movies aren't valid.
Continuity: When Batman is chased by the cops while he is trying to save Rachel, he reaches the roof of a parking lot and stops. A cop orders him to switch off the engine of his vehicle and get out. Later when Batman is chased inside a tunnel, we see a cop asking on his radio what the Batmobile looks like. The Batmobile then zooms past him and he says "never mind". The only problem is that it's the same cop both times, so he knew full well what the Batmobile looks like when it stopped in front of him initially. Probably caused by the order of those sequences being switched in editing, but still a mistake.
Revealing: When Bruce Wayne is heading to the hearing at the courthouse, he checks his revolver to make sure it's loaded. His intent is to execute Joe Chill for killing his parents, so he would need a working gun. But when he opens the cylinder of the revolver to make sure it's loaded, you can see that all of the bullets have had the primer removed (the end of each bullet casing has a hole in it.) This is done to make each round impossible to fire, for safety on the set. Submitted by Mobrien316