Von is making a short documentary film for class on the topic of 2D vs. 3D movies. Leo says he's not really a fan of 3D because he doesn't have full binocular vision. Although he saw some amazing 3D at Universal Studios: Hollywood, where he saw the Transformers and King Kong. Very realistic and enjoyable. But regular 3D movies aren't like that. Leo think it's actually distracting from the movie itself. It's not natural in the way it's done in movies. Brightness is also an issue. Then there's the glasses that have to be worn.
So, for Leo, it's still just a gimmick. Give him higher resolution and just great story telling any day. For Leo, that's the future. The brain will make 3D naturally, and having a higher resolution picture will make it appear more realistic and 3D without the gimmick.
Roger Ebert published a letter written by Oscar winning editor Walter Murch that pretty much settles the debate between 3D and 2D.