I was a huge fan of WWE in the 80s and early 90s. I still have a lot of respect for the guys and girls that do it. Obviously The Undertaker was always an interesting character. And this gives an amazing insight on what made him tick. And the phenomenal pressure doing it put on this monster of a man. And I say monster in reference to his size! The real life Mark is a fantastic guy. One of the best documentaries I've seen for a long time.