Continuity mistake: When Amy Winehouse tells the caveman to calm down and says "you make my head hurt", the shot shows Amy from behind with her right arm down. When it cuts she is holding her right hand to her head. (00:04:15)
Continuity mistake: In the wrestling scene on Will's super sweet 16, you can see that the balloons keep switching colors between each shot. (00:12:00)
Continuity mistake: When Hancock is getting woken up by the boy, his hands are empty but when he gets up there's a beer bottle in his hand. (00:26:55)
Continuity mistake: When Juney and that girl from Sex And The City are fighting, at one point Juney squirts breast milk all over her face and hair, but in the next shot she's clean. (00:29:20)
Continuity mistake: When the Enchanted Princess eats the beer bottle just before the 'Alvin and The Chipmunks' scene, in one shot there is blood in her mouth, in the next shot it's gone. (00:45:20)
Continuity mistake: In the 'Alvin and The Chipmunks' scene, one of the chipmunks gets foam all over its mouth, but in the next shot it's gone. (00:50:00)
Continuity mistake: In the scene with "Alvin and the Chipmunks", when they capture the chipmunks in the trashcan, the trashcan lid is bent, but in the next shot, it is straight. (00:52:45)
Continuity mistake: After the Enchanted Princess reloads her gun, she starts shooting Speed Racer on the floor and the gun is held properly. In the next shot, she now has the gun tilted over to the side, and not enough time has passed for her to have achieved this. (00:57:10)
Continuity mistake: When the Enchanted Princess shoots Speed Racer, she holds both her hands on the gun, but in the next shot has only one hand on the gun. (00:57:15)
Continuity mistake: In the scene where they get the spear from the statue out of Lisa's shoulder, her shoulder shows a lot of blood. In the next scene the blood is all gone, including the wound. (01:00:00)
Continuity mistake: When Will uses the whip from Indiana Jones for the first time, he hits Amy in her face. She gets a small wound on her cheek. In the next shot it vanishes. (01:11:05)
Continuity mistake: When the Calvin Klein model throws his underpants at J.T, a couple shots later they are back on him.
Continuity mistake: At one point, at the beginning of the movie, the caveman gets mammoth poop all over his face, in the next shot it's gone.
Chosen answer: Apollo 440 - Stop The Rock.