Fascinating documentary about a group of LA studio session musicians of the 1960s, nicknamed The Wrecking Crew, who played on what seemed like just about every hit record of the day. The film is so interesting because it plays out like a secret history of rock and roll, starring a cast of musicians that no one has ever heard of. I'd always known there were studio musicians who played on various records, but I had no idea how many bands they played for who I'd always assumed played their own instruments. It's no surprise that vocal groups or singers like Frank Sinatra or The Ronnetts would use studio musicians, but it was surprising to find out how many times bands like The Beach Boys, The Byrds, The Mama & the Papas, Herb Alpert, The 5th Dimension, The Marketts, Gary Lewis & The Playboys, The Baja Marimba Band, Ricky Nelson, Jan & Dean, The Association, Elvis Presley, Harry Nilsson, Sonny & Cher, Simon & Garfunkel, The Ventures, Ray Charles, Captain & Tennille, even the Beatles used them once, and so on and so forth. And that doesn't even touch all of their film and television work. Almost as interesting as this film itself, it the behind the scenes story of getting the film made. The film's director, Denny Tedesco who is the son of one of the crew, began the film years ago, but took years to acquire enough money to buy the rights to all of the music used in the film. Most films have maybe a handful of hit songs, but this film had over ninety #1 hits, which costs a pretty penny to license for use in a film. Through Kickstarters and other means, he was finally able to raise the funds and give the film an official release. Overall, even if your'e not a fan of 60s music (though it helps), this film illuminates the widespread influence a small group of musicians had on the music industry.