At 39.49 into the film, after ramming the prostitute against the metal gates, viewed from the interior of the SUV, there are several patches of her blood on the windscreen. The scene cuts to the SUV's interior, then to a top view of it, where the windscreen has no blood on it. The scene cuts back to the interior, where the screen wash and wipers remove the patches of blood from the windscreen.
When James is discussing talking to Franklin McVeigh the hilt of a samurai sword is visible. In the next shot, the sword has disappeared and never reappears.
When Bone knocks Hammerman out and he falls to the floor, you can clearly see that the concrete is fake as it creases when Hammerman's head hits the floor.
In the first scene where Kimbo and his companions are walking, the camera man's shadow can clearly be seen on the railing below.