You can go anywhere in the world (if you have enough money), in any city, in any cinema house theater, any IMAX, and watch all the movies (3D or not, Dolby Atmos or not) you want.
You can also watch on a mini screen (iPhone) on the bus, on the metro, on the boat, @ work in your office, in a taxi cab, on the train, on the plane, in the jungle, in the forest, on the mountain top, in your bed while making love, @ your friend's cottage, in your kitchen, dining room, @ the beach, ....anywhere you want.
But to be truly inside the highest resolution movie with all the high definition sound all around, only in real life when you are living and interacting with other humans, animals, nature, ...you are truly making and living inside your own movie.
The real 4D holography is life itself, with its own natural light.
And the point of having 4K in the palm of our hands for basically free (with a plan), plus all the 4K downloads available, is a hard contrast with quality 4K front projectors and all the 4K Blu-ray movies available today.
* But! The emotional human impact that we all get from watching a high-def movie on our smartphones, is equally disproportional to the effect we get from a large screen (say over 10 feet diag) @ home. ...And the difference between a pair of surround headphones and a full blown Dolby Atmos/Auro-3D system @ home is unprecedented in the overall sensory effects (viewing and hearing).
It is true that the picture technology is extremely slow when it comes to very large screens (both @ home and @ the theaters) in the best high definition moving pictures possible, and in 3D.
When we watch a movie filmed with 3D IMAX cameras on a eight-story high definition/resolution 70mm screen, we can easily see all the minute imperfections and un-synchronized movements during fast action sequences. ...The rate of frames per second in an analog world is different than in the digital one; the overall moving cadence.
We are so far away from picturing real live events on our screens in our living rooms. ...Auditory and visually. ...We have much better lock with our miniaturized world (iPhones, iPads, smartphones, tablets, laptops, eBooks, ...). The overall impact is just not the same. ...Bigger is better, but bigger is more visually flaw too.
Maybe we should take a 4K smartphone 6" screen picture and just zoom it on a 120" screen?