Factual error: The baby is expanded to approximately fifty times his height, width and girth but it's explicitly stated that he retains his orginal mass. This means he will have the same volume as one hundred and twenty five thousand babies of his original size, but will weigh the same as before he was enlarged! That child is going to weigh much less than the volume of air he displaces. He's going to float away.
Factual error: The forensics report says that Leptospira interrogans is the virus which causes Weil's disease. Leptospira is actually a bacterium. (00:52:20)
Factual error: In the scene where Daniel is flying the B-25 (Mitchell) to see Helen, you can see the propellers are turning much slower than needed for a cruising flight. Also, the sound of the engines is too low and keeps changing even though Nat and him are talking.
Factual error: The prison bus manages to utterly defy physics. Scott throws a grenade which detonates by the rear left wheel. However, the bus then rolls over toward where the explosion occurred, not away as it should have done.
Factual error: A digital billboard shows the date as "Thursday, November 23, 2009"; that date was a Monday.