In the scene where Mike (Matt Dillon) confronts Officer Eckehart (Milo Ventimigila), Mike's uniform shirt is not tucked in (right side) in one shot, fully tucked in during another shot, and then slightly not tucked in (left side) in another shot.
When Hackett enters the dressing room, on the morning of the heist, Baines' locker is closed, then open and closed again.
The idea of taking out the pins in order to get into the truck would not work. Even if they had gotten all the pins out, the locking mechanism would still hold the door in place.
Even after all the truck has been through during the robbery, its windshield is still perfectly clean as Mike chases Ty through the factory.
(at around 48 mins) A production traffic officer visible on left of screen (almost hidden by sun glare).
(at around 9 mins) Lighting equipment visible (in the background to the right) as the truck drives under a bridge.
(at around 40 mins) After the first pickup, as the truck is driving down the road, the shot from the driver side as the vehicle is passing the camera, the camera boom is reflected in the side of the truck.
In the beginning of the movie, after they pick up the money from the bank, you see the light is red (right side of screen) as they continue to drive through the streets without stopping.