Continuity mistake: The brothers in law are shaking hands with Captain Hernandez in front of the district. There's a woman with long brown hair and carrying a purse. She keeps passing them by walking up the stairs, twice with a friend with a purple top, once on her own, and comes down the stairs not too long after. She's not the only extra recycled / passing a few times in succession, for instance a bald black man in a dress shirt. (01:31:20)
Continuity mistake: Lt. Brooks calls to announce that Ben's career is over. Ben walks away; in the aerial shot that follows, the cargo doors are open at different angle and the two policemen who were filling in reports by the guard-rail are missing. (01:19:25)
Continuity mistake: After James and Ben have been notified their punishment, the gang is in a bar, figuring out what went wrong. When AJ says "Maybe the container was made of coke", Ben's crossed arms switch position (look at the wristwatch). (01:19:40)
Continuity mistake: When AJ tells the gang that there's a shipment every morning, Ben goes "Let's do it." Olivia Munn in the foreground has her chin leaning against the back of her hands; next shot and no hands in sight. Likewise, she changes arm position when James tells Ben that he needs to talk and they move away. (01:21:25)
Continuity mistake: James and Maya open the cargo container and find pile of of drugs and weapons stashed there. Ice Cube holds the automatic weapon in different ways depending on the angle (just look at the strap), and when Pope gives them a shout you can see also Olivia Munn reach for the gun (which is on the cargo bed) using her hands in a radically different way. (01:24:40)
Continuity mistake: AJ distracts the baddie that was shooting Ben with his assault rifle, and Ben manages to gun him down. The man dies falling in two different parts of the street - just look at the cracked section of the asphalt. (01:26:50)
Continuity mistake: When James quite anticlimactically shoots down Pope's lead henchman to save Maya, he is completely in the open in the last shot of the sequence, but he was leaning for cover against the container all the time before, and was never shown moving, quite the opposite. (01:27:15)
Continuity mistake: In the footage inside the bathroom at Pope's, Kevin Hart is wearing a different sash from the rest of the party scene (or more likely, the same one but inside out by mistake). It's particularly obvious when he looks out of the window and the two patterns alternate depending on the camera. (01:04:50)
Continuity mistake: For some reason, Olivia Munn decides to go create a distraction dancing with Pope. When she goes down the stairs, two women are ascending, but at the cut an entirely different one is coming up (who was also seen going down just at the beginning of the sequence anyway). (01:02:30)
Continuity mistake: Pope stops the trio as they are trying to slip away from his residence during the party. Filmed from behind, he is talking to them being to Ben's right, but filmed from the front, he's positioned between Ben and Maya, to the point that when he walks forward they have to make way splitting left and right. (01:09:50)
Continuity mistake: Ben and James have stopped the "ghost" truck. Ben is gloating that it's their "first bust as the Brothers-in-law." Notice the cone of light under the vehicle, at the lower part of the car door. Next shot it's suddenly gone. The side of the pick-up keeps switching between lit or not, and in the last shot from normal height the doors are even fully open. In the aerial shot that comes after, just one door is open and the other closed. (01:16:40)
Continuity mistake: When Ben spits out of the trashed hairy taco, extras around him have changed position - just look at the girl in a purple bikini on the beach volley court, the ball she is holding disappears between shots. (00:53:00)
Continuity mistake: The brothers in law have just retrieved AJ from the beach, but baddies on a BMW start chasing them. In close-ups James is holding the wheel using his left hand, since he is using his right to push Ben out of harm's way, but in the one external view of the action in between those closer angles, the driver is holding on top of the steering wheel a right hand. (00:53:35)
Continuity mistake: In the car chase, a bad guy shoots Ben and James' car saying it's "too easy", since Ben is signaling his turns. In that sequence you can notice the natural light changes suddenly between shots, and the street in the background is not the same, nor the intersection where the turn happens. (00:52:55)
Continuity mistake: During the gun standoff at Alonso's, AJ knocks off the table a set of tools. The action happens across two shots that come from two separate takes: AJ in the first one is turning towards the box and blatantly knocks it down himself, while in the second, he's looking away the whole time. Also, during the "What the hell?" moment it's on the floor, closed, when it obviously landed face down, open. (00:58:20)
Continuity mistake: In the sequence with Alonso holding his chest where the bullet hit the vest, Arturo Del Puerto's hair is parted in different wisps above his right eye depending on the camera angle (each probably shooting one or more different takes of the same scene). He's also holding his hand off and then above his shirt. (00:59:00)
Continuity mistake: Ben is posing as the Nigerian consul. James punches him in the face one time; after he says "Oh, God", there's a close-up of the bouncer looking flummoxed - notice that at the edge of the frame Ben's got James' hand on his face. In the next shot he is propping him up under the armpit, though, and in the close-up prelude to the second punch he's again with his hands on his face. (01:01:10)