The most insight on Glastonbury comes in an interview that’s buried on disc two and runs less than three minutes. Oasis’s Noel Gallagher succinctly sums up why the festival is still relevant, even if, in his words, backstage is now filled with the wankers from London he tries to avoid. Director Julien Temple’s 138-minute music documentary has almost no music and instead focuses on the festival’s history. It’s a novel but misguided approach: The only thing captivating about the history is how, over time, the fence got bigger and bigger to keep out the gate-crashers. Festival organizer Michael Eavis fills in the historical gaps, but the archival footage looks like it’s all from the Summer of Love. The music, all on disc two, relegates about 10 bands to one performance each. Save your money.