20 followed by a weeklong limited run stateside. If it grows more cursory and conventional as it proceeds, that probably won’t dismay the band’s ardent followers, who are sure to turn out for the brief theatrical release - a one-day international event on Sept. As official stories go, the doc reflects the same profound affection that infused Crowe’s tender Almost Famous. Going back to his rock journo roots, he’s fashioned a retrospective that fits neatly into the band’s ongoing celebration of its two-decade career.

Pearl Jam Twenty doesn’t fall into either category, but Cameron Crowe’s feature doc - receiving its world premiere at the Toronto festival - is among his most effective and deeply felt work. The rock documentaries with the greatest staying power speak entirely through performance or strip away the layers of public persona to reveal out-of-the-spotlight dynamics.