In Minority Report (2002), at around 2:13:45, Burgess approaches Anderton and Anderton says:
No doubt the Precogs have already seen this. You see the dilemma, don't you? If you don't kill me, Precogs were wrong and Precrime is over. If you do kill me, you go away. But it proves the system works. The Precogs were right.
My question is about the bold-faced statement. Isn't the exact point of Precrime is so that the murder doesn't happen? And how would the Precogs be wrong if Burgess does kill him? The Precogs predict that a murder on Anderton will occur, perpetrated by Burgess, and so if it does happen, then the Precogs are correct (not wrong, according to the statement).