Dave Grohlposted a wistful thank you to Foo Fighters fans last fall prompting much speculation about the future of that band. Since then Grohl has rejoined Queens Of The Stone Age as drummer, reprising his role anchoring that band's 2002 opus Songs For The Deaf. But most of his energy has been spent finishing a documentary about the legendary Los Angeles recording facility where Grohl's other very famous band recorded its most famous album.

Sound City marks Grohl's directorial debut as a filmmaker, and the piece will screen at the upcoming Sundance Film Festival. Grohl tracked the history of Sound City - from ground zero of the L.A. rock scene to the impact of inexpensive digital recording - and talked to many famous musicians about their experiences and what Sound City meant to them. Check out the trailer below.

http://www.youtube.com/watch?v=HQoOfiLz1G4