I caught the music documentary It Might Get Loud earlier in the week, and yesterday interviewed director Davis Guggenheim (An Inconvenient Truth), as well as Jimmy Page and Jack White — who, along with U2's The Edge, form the triumvirate of axe-men which the film takes as its subjects — for a feature piece a bit further down the line. Part compare-and-contrast piecemeal biography, part godhead gathering, the movie is in sum never less than in-the-moment engaging, even if there's a lingering feeling that the moderator-less roundtable gathering that forms its spine could perhaps have used a bit more prodding or structure, to get at the marrow of exactly why and how even trite musical expressions sometimes achieve significant emotional lift-off. Nevertheless, music fans will jam on this title big-time, as the above trailer amply demonstrates. For those in the SoCal area, the film screens in the afternoon on Monday, June 22, at the Los Angeles Film Festival in Westwood.