Skull Island uses blending to get 8k 3D @ 60 FPS. Similar to how IMAX laser gets 4K. Also there are actually 8k 3D home projectors.
There are fake 8k home projectors that use pixel shift, just as low end 4K home projectors are really 2k using pixel shift.
There is most certainly not 8k 3D for home. Unless it's some special half rate 3D which would be awful.
And of course there is probably about 10 minutes of 8k source to watch anyway.
Not to mention unless you have a 20 foot screen you are watching at 2 or 3 feet, buying an 8k projector for your home would be a complete waste of money.