Sketched Discussion: 7 good uses of 3D

After watching Wrath of the Titans and The Avengers trailer, I got to thinking what makes good 3D and what are some techniques to best use it.  Whether you see 3D as the big new thing like color TV or a flash gimmick like 80's 3D, there's no denying there are some great ways to incorporate it effectively into the movie experience. Here are seven great uses of 3D(with mock storyboards from The Avengers trailer)!