Saw it. Superb images, a lot of interview of sports pionniers and(somewhat) early businessmen of the various "extreme sports".
But I found the mix awkward: it gives not enough action sequences, and the documentary aspect is somewhat a bit shallow, verging often on self-promotion by the interviewees. I would have preferred 2 movies: an action-packed replayed action movie + a "behind the scenes" documentary, but this is my view as a video viewer: for a one-time view as a theatrical release the current mix makes sense.
PS: some sequences look like filmed via GoPros or Drones, but they had to resort to an heavier organisation to provide quality images: for instance a guy zipping backwards on a cable in the forest to film mountain bikers: