Strangely, Bob didn't say a thing about the movie's GREAT hidden meaning. I've thought for quite a while already that all this "Wizards vs Muggles" thing happened somewhere already. You know, the "strong" people, that have their advantage in their blood, some of them thinking that "lesser" people and "dirtbloods" don't deserve to be treated like people, but like dogs and slaves; suddenly obtaining a strong leader, who promises the revolution that will build a Brave New World to them, despite being a dirtblood himself, and rejecting his own family.
Jeez, where did I see this already? Oh yeah! here! http://en.wikipedia.org/wiki/Nazi_Germany
It all matches up neatly - extremists fail their first attempt and their Leader disappears for some time and returns with a new force to start again etc. Build your own comparisons, if you understand what I'm talking about.
So, what I want to say is that this last installment not only confirms my theories, but actually plays out like a wartime drama with magic wands. To put an example - a scene where a champ and a lady in the dirty gray tent that is lit with an oil (!) lamp, dance listening to some jazz band, that is played through a noisy old radio. Damn, there're more war movie cliques than in most war movies!
http://www.youtube.com/watch?v=YzfEH0UPEBo - go to the 0:51 mark, look at those men in uniforms. You know what they do? they check for dirtbloods. Yeah, magical gestapo.
PS Instead of silly 'stauche "He"s got a silly nose.