I have seen the free excerpt from that documentary on youtube! It is very convincing. There is also a youtuber called Ray Maor who runs breatharian intiations, they did a documentary called The Light Generation documenting his 10 day process (link here).
I am hoping to personally explore this, and perhaps do one of Ray's intiations when I collected sufficient funds and have taken my own diet to a highly refined place where that would be the next step.
Yes! Dying is one way to leave the planet, but why not also just dematerialise? :)