I'm not saying movies in VR is a bad idea. There's a lot of good optical reasons for that. I'm saying simulating a living room, but on a computer!, is silly. Just watch the movie.
Might be nice to watch a movie in a comfy room if you are stuck on a long flight. I think headsets out to at least ship with a noise cancelling headphone option built in. Plus, the room scene is easily interchangeable. With a decent room scanner it could be your own home, or a Hollywood screening room, or the Acropolis.
Yeah, I would think a big screen kind of floating in space, or perhaps simulating the backdrop glow that some higher end tv's have against a simple wall... Sorry, I thought you were calling out the whole thing, not just the implementation details.