Other mistake: When the monk arrives with Jackson and the others at the gate leading into the secret entrance of the ships, the countdown to impact timer reads about 28 minutes. It is highly implausible that the group, which contains elderly and small children, are able to get to the top of what looks to be a 100 story staircase in less than 15 minutes without breaking a sweat. Once they are inside the hatch, the countdown to impact timer reads about 13 minutes.
Other mistake: When they are loading the last of the passengers and workers, the gate from the ship goes down at a very slow pace. However, when Uri and his sons are climbing up the ladder to get to the platform, the gate is going up at a very fast rate. It does not make sense that it would not go back up as slowly as it went down.Cynthia Gurski