So? I see no problem with that whatsoever. As far as I'm concerned anybody should be allowed to buy anything from anyone else so long as they're willing to sell it (and its main purpose isn't to harm others, eg. weapons). I do think there should be state run businesses in any vital industries, but not only are cinemas not vital, even if they were that still wouldn't make a difference here.
Sure, I'm biased in that I think cinemas offer a massively inferior viewing experience to TV and are insanely overpriced, but you're biased the other way so you can't really call me out for that.
Sure, if you want your local theater chain showing only Disney/WB films (and it will be one of those 2 since they're the only ones in any real position to buy out theaters).