The whole 3D movie thing pisses me off, there were scenes in HP7.2 that were there just for the visual eye candy and not because they had any storyline value. And all I can think was "Ok this is where the CG people show off for 3D 'wow factor'" MEH
I think there are some movies that are filmed with using 3D in mind, like the latest Transformers movie. The 3D in that was spectacular. I agree that the 3D in HP7.2 was unnecessary and I believe it was added after the fact.