Continuity mistake: When Ryder gets Garber to sit down in the cab, there is a bullet hole in front of Garber, when the train moves, the bullet hole is gone. (01:12:00)
Suggested correction: The bullet hole in the window was not directly in front of Garber. Ramos was shot through the window when he was sitting on the left side, the driver's side is on the right. When Garber sits down in the driver's seat he's at an angle when the bullet hole comes into focus. All other shots of Garber without the bullet hole are showing him straight on where the bullet hole cannot be seen.
Continuity mistake: When the police on the motorcycles are delivering the money bags, there are 4 of them. When they're walking through the Waldorf Hotel they only have three bags. With watching the hostages they wouldn't have time to consolidate the bags. (01:04:00 - 01:29:00)
Suggested correction: Garber was carrying the 4th bag when they got out of the metro car. That's when he retrieves the gun as well. He dropped it right after he splits up from the rest by hiding behind the passing train.