Continuity mistake: In the scene where Big Momma's gentleman caller comes to the door, Martin Lawrence runs over to the door and stands directly in front of it with both of his hands up gripping his gun. This can be seen in the shot when we see into the house through the window on the door. In the very next shot both of his hands are down. (00:25:25)ACertainShadeofGreen
Continuity mistake: When Big Momma (Martin Lawrence) is in the place where Nolan supposedly teaches them to defend themselves. When Nolan is looking at Gertrude, you can clearly see a young face, with no wrinkles. Then when she is laying down on the floor, there is a very old face. They used a double for the scene in which she is hit. (00:43:20)
Continuity mistake: Given that, the little boy chases fireflies (which don't light up until dusk). It was entirely too bright out for the fireflies to light up. (00:55:50)
Continuity mistake: The sun was exactly as bright the evening they went fishing as it was at 5:45 a.m. (00:53:55)
Continuity mistake: When we first see Sherry's Mustang, it has a black convertible top, but later in the film when she and Big Momma ride into town the top is now white. (00:04:35 - 00:18:25)
Other mistake: Near the end where the real Big Momma knocks over the 2 fighting guys and falls back on top of the security guards, and she's being held down, you can see what appears to be part of a fat suit coming from underneath her clothing. (01:26:50)
Continuity mistake: When Martin rips the door bell off the door, throughout the scene it changes from wires hanging out with the door buzzer attached to just a bunch of wires. (00:38:55)
Continuity mistake: When Malcolm finds the money he throw Sherri her necklace, but in the next shoot Malcolm is wearing the necklace. (01:17:10 - 01:20:15)
Continuity mistake: When Big Momma wakes up to find that his face is peeling off and Shari knocks on the door, Big Momma goes out the window and his whole outfit comes off. He is completely dressed in a T shirt, sweats and tennis shoes. Why would he have clothes on under Big Momma's outfit, it would be too hot. (00:37:55)
Other mistake: In the scene where they surprise Big Momma for her birthday, Nolan takes the gun from Malcolm (he says give it to me, you ain't supposed to have that, etc. then says I'm gonna go secure the perimeter when he gets the gun) . They show the gun and their hands up close. It is loaded, the safety is off, it is cocked and Malcolm has his finger on the trigger. Nolan is pressing Malcolm's fingers. If he had really been fighting for the gun the way it seems, the gun would have gone off.
Ben: I've been waiting on this moment ever since I first laid eyes on you.
Malcolm Turner: Ben, whatever you started in that bed, trust me, you're going to finish alone.