The 2002 70-minute documentary The Mysteries of Love goes behind the scenes of Blue Velvet, featuring interviews with Lynch, Kyle MacLachlan, Isabella Rossellini, Laura Dern, and Dennis Hopper. We get to hear the crew’s thoughts about the use of nudity, what test audiences felt about the movie, and more.
Source: Fascinating Behind-the-Scenes Photos and Interviews from David Lynch’s ‘Blue Velvet’ | Flavorwire | Page 3
(with special thanks to David Lynch – Lynchland)