It's called "It Might Get Loud". I know this documentary came out in 2008, but it was the first time I caught it. My apology if this has been discussed here already.
For those who have not seen it, it follows the stories and how they became to be three R&R guitar greats, Jimmy Page, The Edge and Jack White. They all have great stories but Page's I found the most interesting, probably because it goes back the furthest and a big LZ fan. Page just played with so many great musicians before connecting finally with Zep.
Anyway, not sure if any of you had caught this documentary, I thought it was great? If so I would love to hear your thoughts, as I truly respect a lot of opinions on this board.