Movies that would be incomplete without the final five minutes.
Big Reveal Ending
The notes for this film reportedly contain spoilers. I can handle the truth.
The tethered concept is so deep that it's hard to even textualize. Hard to fully grasp.
I also want to put out there that I subscribe to the theory that Jason, the son, is actually a tether that has been switched into the regular reality... many clues and Easter eggs point to that in the film.