Other mistake:WhenMargeis being questioned, before she says 'If you don't have anything nice to say, then don't say anything at all', there is a shot over her shoulder looking at the blue haired lawyer. Not only is he (the lawyer) there directly in front of her, but he is also ...
Dudman's creature dept on the first Harry Potter movie. Who would know then that this would extend over a period of 10 years and 7 movies with Mark overseeing the creation of Lord Voldemort and other memorable characters such as the inflating Aunt Marge and the goblins of Gringott’s bank...