VR films ? Not likely.
A film is a story. A story is told effectively when you concentrate on the relevant elements and ignore the mundane, humdrum stuff that has absolutely no interest to getting the story to move along. That's why you never see James Bond at the airport to get to his next exotic location.
VR films would be films in which, theoretically, you could choose to watch the plant in the airport lounge instead of watching the crazy kung-fu fight between the main protagonists. I doubt that will be allowed, the producer is going to want to know why he should fund however many cameras to shoot angles that have got nothing to do with the action that is the basis of the story.
As for VR in porn, sorry but no chance. Shoestring budget issues aside, producers in that industry absolutely do not want you watching anything else than what they want to show you - <ahem> from what I've seen heard.
So, VR in games ? Absolutely. Sandbox games are all the rage right now, and VR lends itself perfectly to that experience. Racing games will do okay with VR, but like 3D in films, it will bring next to nothing to the experience.
And apart from that ? Nothing. Films are a passive experience by nature, VR will bring next to nothing to that.