Continuity mistake: There is a scene where the female trucker is driving her truck and she intentionally hits a brown car. The problem is that she had already passed by this brown car a few seconds ago when David was getting into her truck through the window.
Continuity mistake: When the old Asian lady is hitting the Hulk using a wooden spoon, he is wearing brown pants. After escaping through the window, the Hulk is seen running on the street wearing blue jeans. But for the rest of his transformation he is wearing brown pants again.