EMTurbo

Corrected entry: In the scene at the warehouse, where Ian and Erin work, Ian is holding a nail gun. When he is lifted up on the forklift he is holding the gun pointed down, but when it cuts to a frontal shot of him, he is holding the gun pointing upwards, in front of his face.

Corrected entry: Erin's head striking the nail gun would not trigger a shot. It requires a simultaneous pull of the trigger plus depressing the trigger safety (as Ian did shooting at the pigeons) to fire a nail. Some guns can be converted to "bump fire", but it requires some disassembly, and Ian would not have done that because he had not eliminated all the pigeons.

Corrected entry: When the kids get off the roller coaster and the ride starts, Wendy is dragged outside by the security guards. About 5 seconds after Wendy has been dragged out the roller coaster crashes. So basically, the roller coaster managed to climb up the huge hill and crash in the space of 10 seconds, even though it took at least 30 seconds to climb the hill during Wendy's premonition.