Revealing mistake: When the policeman is shot on the roof of the observatory and the police cars drive across the grass, you can see the tyre marks in the grass from previous takes.
Chain Reaction (1996)
1 revealing mistake - chronological order
Directed by: Andrew Davis
Starring: Morgan Freeman, Keanu Reeves, Rachel Weisz, Fred Ward
Visible crew/equipment: After Keanu finds Dr. Alistair Barkley dead on the lab floor and goes to attempt to revive him several shots show nobody else is around him, but straight after he starts to push on his chest a crew member can be seen stood over his right shoulder in a red top with a blue sleeve.
FBI Agent Ford: Ma'am, we just had eight city blocks disappear. The President of the United States talked to my boss at three this morning, he wants answers.