Corrected entry: In the hotel attack scene, the bad guys were paralysed when Charles went into a seizure. Logan came in and drove his claws into several men's head. These men died and their brain function should have stopped and no longer affected by Charles. They should have fallen over, but they remained standing until Charles had his injection.
Corrected entry: When Logan, Laura and the professor are driving towards the horse trailer notice the red tractor trailer coming towards them. It is the rear end of the truck (there is no rig and you can actually see the mud flaps in front of the tires.) It looks as if the truck is driving down the highway backwards.