Article Photos: Grohl's 'Sound City' film explores human element



Musician Dave Grohl poses for a portrait at 606 Sound on Wednesday, Jan. 9, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)

Musician Dave Grohl poses for a portrait at 606 Sound on Wednesday, Jan. 9, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)