Continuity mistake: When Rebecca is lowered into the pipe, the cut on her forehead has no bandages. When brought out, she has two bandages on the cut.
Continuity mistake: When first shown, the converted tank has a red ball with Curly Howard's face on it. When attacking the WP truck later, the ball is yellow.
Other mistake: The first time Rebecca gets Keslee's arm stuck, he wipes his head with his hand, but she goes to punch him, her hand passes through the hologram. His hand should have gone through as well. Also, when she shoots the bucket at the end, it dumps water on him, and he coughs, though the water shouldn't have bothered him.