Continuity mistake: The brothers in the movie are at the drive through and when you see the truck, the tailgate has a Chevrolet logo on it. When they drive away, you then see that the logo has changed to a GMC logo.
Continuity mistake: When Sally and Dorian are checking out his helicopter and they kiss, the position that they are kissing changes depending on the camera angle. First Dorian is shown with his head leaning to the right, then it's to the left, then back to the right.
When Angus is chasing his Mum, Sally, and Dorian in the helicopter you can see through the windsheild of the helicopter that the road is blocked off with orange cones and police cones when earlier there was traffic on the road.