When Hammer has coffee with Kalecki on the rooftop, the position of Hammer's coffee cup handle changes between camera angles in the same scene.
When Hammer is attempting to enter the compound, the guards refer to explosives rigged at the fence and along the driveway as "daisy cutters", which are 15000lb general-purpose bombs; they probably intended to say "claymores".
When Hammer shoots the truck driver from behind and the truck starts swirling over the road, you can see the 'dead' driver turning the steering wheel vigorously.
When the truck rear ends the cement truck, cement starts flowing into the cabin of the truck through the chute. That couldn't happen as the drum is rotating in charging mode, pushing the cement deeper into the truck and not out.