The final fight against the villain of the movie is set at an airfield where it is quite clearly the middle of the night during a heavy downpour, then 5-10 minutes later the final scene plays and it's clearly just becoming dusk and there is no sign of there having been any rain at all.
When the brothers are fighting, they go rolling down some steps. The one with the white shirt on has a gray shirt under it. But just before and after he doesn't.
Although Peter appears to be carrying a very heavy Satellite dish when he throws it, Reg takes it off his car with ease because the weight of the satellite dish has changed to a much lighter item.
As Councilman Leonard Stewart is leaves the spa, to get to his car you can see in his sunglasses that there is a cameraman filming him.
The angle grinder used to cut the case open is a corded model with the cord cut off, not a cordless battery model.