The canyon in question, Laurel Canyon in the Hollywood Hills of LA, is filled with musical history and memories ranging from vivid to hazy (we’re talking 1965 to 1967) when our nation’s music scene was centered there. This thoroughly entertaining documentary is essential viewing for rock fans because it’s a celebration of the place where folk went electric, and The Byrds, The Beach Boys, Buffalo Springfield and The Mamas and the Papas gave birth to the California Sound. Bands came to LA to emulate The Beatles, and Laurel Canyon emerged as a hotbed of creativity and collaboration for a new generation of musicians who would soon put an indelible stamp on the history of American popular music. Featuring Jakob Dylan, the film explores the beginnings of the Laurel Canyon music scene. Dylan uncovers never-before-heard personal details behind the bands and their songs and how that music continues to inspire today. Echo in the Canyon contains candid conversations and performances with Brian Wilson, Ringo Starr, Michelle Phillips, Eric Clapton, Stephen Stills, David Crosby, Graham Nash, Roger McGuinn and Jackson Browne, as well as contemporary musicians they influenced such as Tom Petty (in his very last film interview), Beck, Fiona Apple, Cat Power, Regina Spektor and Norah Jones. Strangely, though, Joni Mitchel, who wrote and sang Ladies of the Canyon, is not included. But the talents on display “will have you tapping your toes, laughing, beaming, and savoring music that never grows old,” says Wendy Shrive of Featuring Film. Robert W. Butler of Butler’s Cinema Scene explains that the film is equally divided “between talking heads and musical performances,” going on to call it “tuneful, insightful and, yeah, awesomely nostalgic.” 1:22. Rated PG-13 for drug content and some suggestive references.