Or, "Not Loud Enough." If only director Davis Guggenheim had cut a deal with the devil at the crossroads, then his slavish but oddly stilted documentary/concert pic paying tribute to the electric guitar might have acquired some unholy, unruly energy.

As is ... eh. U2's The Edge (honestly, I never quite got over that name) sits on an L.A. soundstage trading anecdotes with Led Zeppelin's silver-maned Jimmy Page and dork god Jack White of The White Stripes. The three exchange generalities about creativity and pushing the boundaries and "stretching the limits," and jam a bit.

Why isn't the film better? Guggenheim doesn't seem to have prodded his subjects in any interesting directions. Partly, too, bringing these three generations together for a soundstage "summit" feels hoked-up in the extreme. Guitar heroes, real and imaginary, will no doubt get something (maybe a lot) out of "It Might Get Loud." But surely this tradition of electrified and electrifying blues-based rock deserves a hotter stove.