Continuity mistake: When Maya and Lane are talking to each other in the front of the hotel during Paul's injury scene, Maya has he purse in-between her and Lane in one shot and her purse by her right side in another shot. (00:18:22)
Continuity mistake: When Maya is trapped in the bathroom and the bad guy breaks in, she drops her pepper spray which you can see lying on the floor when the bad guy is talking on the phone. Shortly afterwards it's gone. (00:47:35)
Other mistake: When Paul goes spying using the drone he flies just behind one of the bad guys. There's no way he wouldn't hear it as drones make a significant amount of noise.
Plot hole: Paul should have been shocked as he put his vibrating fork onto the live cable if it was conductive in order to shock the bad guy.
Continuity mistake: When Paul confronts his daughter at dinner over going to UCLA, he slaps the table sending the bread plate flying. In the close up shot, the plate is back on the table with a slice still in it. Then when Maya runs up the stairs, the slice is now gone.
Continuity mistake: The stain on the left hand side of Blart's shirt disappears when he enters the casino mall then reappears later.
Continuity mistake: When Paul Blart is preparing himself to give the keynote speech, Officer Panero is passed out drunk on the couch. Panero's arm changes position depending on the camera angle, from being next to his side to lifted up and under his head.
Continuity mistake: At the wedding in the beginning, Paul Blart does a fist pump and bends down a bit, in the next shot, while still doing the fist pump, he's standing straight up.
