With 3D turned off, you'll see the left eye view of the 3D movie. That's usually, but not always, the same as the 2D movie. Disney's Tangled 3D, for instance, is significantly different. It's a completely different render than the 2D movie that's included in the package. The 3D version has greater depth of field (so you can see more detail in the background), and the 3D version is also full of floating windows. If you watch just the left eye view of the 3D version, you'll see what looks like random cropping of the sides. This makes no sense for a 2D film, but in 3D these "floating windows" help minimize edge violations (where objects that come out of the 3D frame "collide" with the screen edges).
A forum community dedicated to home theater owners and enthusiasts. Come join the discussion about home audio/video, TVs, projectors, screens, receivers, speakers, projects, DIY’s, product reviews, accessories, classifieds, and more!