Typically they have both. I seem to remember some BluRay rule that they must, but I could be mistaken, and I don't think they all do, I always read it as the 3D disc itself has to display in 2D but I don't think that's true.Naked Snake said:Do 3D blu-rays usually also include have a 2D version of the film? Or do you need to buy two separate editions if you want both?