Ehh, the content is the problem because there is a lack of bad content ? There's a heap of 3D content and growing. Like last years Marvell movies, James Bond, Dune. And movie theaters still show those in 3D. Which works because people go to a movie theater for the experience and donning 3D glasses is a minor annoyance with that mindset. Most people don't go to the movies very often. However people wanting to view a quick movie at home don't want that annoyance.
It's a bit the same with VR I think. When you go to an arcade or a friends house the space is already available and you accept being isolated because it's expected. Going for a quick VR session at home is an anti social hassle (unless you got a dedicated VR room or live alone).
I'm just saying that things flying out of the screen rarely add value to the movie. I had 3d tv and my only shows for it were some documentaries, Avatar, Paddington bear, and 3d adventure of tintin.
2 kids movies
1 animated movie
some short but interesting documentaries.
(horror movies runner up (mostly resident evil lol)
