Watched this yesterday. Great film. Quite 'heavy', and initially left me feeling it was more depressing than uplifting, but I think this is probably hard to avoid given the death of so many close friends along the way, and the loss of his son. There are quite a few lighter moments though hidden within the climbing tales.
Chris comes across as a really nice guy, with an undiminished enthusiasm when recalling past climbs, and a real passion for climbing in general. I was interested to find out what he regards as his best ever trip, and am still staggered that an 80 year old climbed the Old Man of Hoy, even allowing for Chris' talent!