Hollywood has officially been on a fashion-fueled film bender for over two years now, following up the inimitable Lagerfeld Confidential with glimpses into the lives of everyone from Coco Chanel and Valentino to Grace Coddington and Bill Cunningham. The binge continues, fittingly enough, with a designer ode to a man best-known for his slinky Studio 54-era creations and legendary appetite for excess. Ultrasuede: In Search of Halston premieres April 30 at the Tribeca Film Festival, with cameos from a who’s-who of the designer’s disco compatriots, including Diane von Furstenberg, Anjelica Huston and Liza Minnelli. Given that longtime Halston pal André Leon Talley advised director Whitney Sudler-Smith as to which beautiful people to contact (and feature, along with him), we can only take it to mean this one’s gonna be good.