It Might Get Loud Jack White, The Edge, Jimmy Page Director: Davis Guggenheim You can practically see U2 guitarist The Edge's eyes pop out of his head and Jack White of the White Stripes gaze in amazement as guitarist Jimmy Page plays the gargantuan opening riffs to the Led Zeppelin classic Whole Lotta Love. It's one of the surprise riveting moments in It Might Get Loud, a casual and organic feeling documentary about the fascination with the rock guitar as directed by Davis Guggenheim (An Inconvenient Truth) and seen through the eyes of premier guitarists from three generations. But the film is truly a mixed bag of revealing details and uneven moments, the brainchild of guitar nut Thomas Tull, executive producer on The Dark Knight. As director, Guggenheim centres the doco around an occasionally exciting jam session with the three guitarists at a warehouse in Los Angeles. At the same time, he also focuses on each guitarist's individual story, which demonstrates how these consummate professionals overcame their fears in order to achieve their guitar-centred goals. For the stately and reclusive Page (also an executive producer on the film), that means thrilling scenes in which he is literally air guitaring to old Link Wray records or demonstrating new material in his English countryside manor. The Edge is captured in Dublin at U2's luxurious waterfront studio. White (above), meanwhile, gives the most of himself, but also seems childlike during scenes in Detroit and at his rustic home outside Nashville. Guggenheim's layered approach to the documentary, filled as it is with terrific archive material and interweaving storylines, could and should have been even more powerful though. It's hard to believe that the best he could do with Page is an oft told story about how Led Zeppelin set up to record their famed fourth album. There's also little sense of the struggles The Edge went through to help propel U2 to the top via his effects-laden sound (which is also revealed to be shockingly basic without his trademark pedals). The best that can be said about this above average doco is that there should be a series of sequels with other guitar heroes discussing their craft while trying to bond at the same time. Extras: A revealing press conference with all principals at the Toronto Film Festival, film outtakes and commentary with Guggenheim and the producers.