I doubt few people think about disco these days. I mean really think about, in terms of historical impact and social upheaval, not just loose beats and glitter. Director Jamie Kastner has certainly wrestled with the subject, delivering a bizarre documentary in “The Secret Disco Revolution,” which employs a mockumentary tilt to attack the myriad of stories connected to the rise and fall of what seemed to be a simple musical fad. Although blessed with a sense of humor, the picture is actually quite valuable as a document of the era, interviewing those who stood (and boogied) on the front line, amassing an eye-opening tale of greed, lust, and burgeoning confidence. Read the rest at Blu-ray.com