"Purple Rain is a song, an album, and a film--each one a commercial success and cultural milestone. How did this semi-autobiographical musical masterpiece that blurred R&B, pop, dance, and rock sounds come to alter the recording landscape and become an enduring touchstone for successive generations of fans? Purple Rain is widely considered to be among the most important albums in music history and often named the best soundtrack of all time. Coinciding with the thirtieth anniversary year of Purple Rain's release, Light takes a timely look at the making and incredible popularizing of this once seemingly impossible project."-- Provided by publisher.