I watched this on the plane coming home from US yesterday and really enjoyed it. I actualy watched it through twice! (it was a long flight and the other films weren't up to much
) . I'd seen the film advertised and half expected it to be some sort of 'celeb/best guitarists in the world' sort of thing but it wasn't.
Essentially it's a documentary about Jack White, Jimmy Page and The Edge - their influences, techniques, background etc. I found it really interesting and 'human' - their love of music (and the guitar) shines through the whole film.
Maybe not to everyone's taste but definitely worth a look.