Sledgehammer director talks creating the year’s most epic music video

BILLBOARD: Award-winning music video director and filmmaker Floria Sigismondi has created the first-ever music video shot entirely in IMAX for Rihanna’s “Sledgehammer.” Written by Sia and Rihanna, produced by Maavven for the forthcoming Star Trek Beyond film (out July 22), the otherworldly video can be viewed online (Vevo, YouTube, Tidal), but …