In the scene where Pine and Roper are demonstrating the weapons, they are all wearing ear protectors. Then suddenly they are missing . The very next second they are wearing the protectors again.
The business jet shown in the flight footage is a Learjet, whereas the jet shown on the ground when the characters disembark is a Challenger 600 series.
The page Jonathan reads which contains information about sarin is actually lifted straight from Wikipedia, with the reference markings [5] and [6] visible.