This has been answered, but I want to add something: Right now, the resolution is so low that the real benefit is the immersion in terms of tracking and responsiveness. You basically tolerate the low resolution (even though it's passable) because of how good (at least the Vive's, as that's what I've tried) tracking is. You really feel as if you're touching things in front of you, and everything feels amazingly responsive and with no lag.

That means that it's mostly geared towards games where you touch stuff, pick stuff up, look at stuff up close, etc. For things like a movie theater, where you're just staring at a screen, my $20 cheapo Chinese phone-holder-goggle-thingy is better (it has better resolution).

For both, the resolution isn't nearly as good as you'd hope when looking for the theater experience. That's not to say the experience isn't theater-like, but I would recommend trying some theater VR out before you commit to it. Either platform would do, they're about the same in this respect.