I just came back from watching this documentary directed by Davis Guggenheim (An Inconvenient Truth) and just felt very inspired to play music. The basic premise of the movie is that they get Jack White, The Edge, and Jimmy Page and put them in a room. There's a lot of background info on each of them, straight from their own mouths. And when they talk to each other and perform together it's pretty magical.
I highly recommend it, even if you don't like any of the three artists. There could have been more footage portrayed of all three of them in the room, but I'm guessing the DVD/Blu Ray will have a lot of extra footage.
http://www.sonyclassics.com/itmightgetloud/