A.I. Artificial Intelligence (2001) - 2 major mistakes
Directed by Steven Spielberg, starring Haley Joel Osment, Jude Law, William Hurt
Continuity: After the pool incident when David is writing letters. Monica is looking over the letters that David has written. There's a point where you can see that she's still holding at least 2-3 sheets of paper but when the camera shifts back to the writing there's only one in her hand. There should be more than one paper in her hand.
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