Diane von Furstenberg, the influential fashion designer who popularized the women’s wrap dress, will be the subject of a new documentary at Hulu. Sharmeen Obaid-Chinoy, the Oscar-winning filmmaker of the shorts “Saving Face” and “A Girl in the River,” is directing the film with Trish Dalton. A release date and title for the feature-length documentary will be announced at a later date. Through archival footage and intimate interviews, the film takes a deep dive into the life and career of von Furstenberg, who forged a path for herself in a male-dominated industry and built a multi-million-dollar fashion empire. She was...