EDIT:
But the real answer is that the question isn't that different from "why would you want to play a video game on a VR headset?" The answer, of course, is immersiveness. Existing video games (and film/TV) may not be optimized for VR, but future content might be.
Imagine being able to look around 360 degrees in a film. It will be a totally different experience from a traditional film where the director precisely frames every shot, and may or may not be more enjoyable for certain types of content.
When you do this with HD content, it actually looks quite good in spite of the resolution of the actual HMD due to the subtle movements of your POV. The in-game camera tracked by your head is always barely moving, so the pixels you actually see in the source media are always being transposed and blended differently.
You're sitting on your couch with the MST3K avatars and you can see them laugh as they deliver their Rifftrax.
And tons of other creative possibilities that we couldn't possibly think of today once people start getting used to consuming a movie in a simulated environment.
I saw a demo of the GearVR which was pretty believable, and if this thing is higher resolution, more immersive, etc., I might honestly find myself questioning why I need to decorate my living room if I have VR goggles on all the time at some point in the not to far future.
When VR becomes ubiquitous, and you can have shared experiences, expect that to be a very real thing.
I do wonder if they will also add the full-screen experience. That could be interesting ...
I'm sorry, why did you include that hyperbole?...
In the last five years, there have been three incidents of criminal violence in US theatres, killing 14 people and wounding up to 78.[1]
In the US/Canadian theatre market, 1.27 billion tickets were sold in 2014 alone.[2]
Movie theatres sound pretty safe to me.
1 https://www.thewrap.com/a-history-of-violence-at-the-movie-t...
2 http://www.mpaa.org/wp-content/uploads/2015/03/MPAA-Theatric...
Convince the general public they are unsafe and boom you have a market ready to buy your replacement experience.
Don't try to use facts and numbers against the average citizen. They won't have it.