The other day when I was flying back from NY on United the featured movie was "It Might Get Loud". I had never heard of it before, but apparently it debuted at the Toronto Film Festival in 2008 and also played at Sundance in 2009.
Basically its three guitar legends, Jimmy Page, The Edge and Jack White getting together and jamming along with lots of footage of their respective careers. I was totally blown away how awesome it was.
If you like any of these guys Guitar work this is a must watch. View the trailer here. It just became available on Amazon, Go buy immediately.