Marking the 50th anniversary of The Rocky Horror Picture Show, this documentary explores the unexpected rise of a cult phenomenon. From its humble beginnings as a fringe London stage production to midnight showings that sparked global fan participation, Sane Inside Insanity delves deep into the enduring cultural and queer significance of Rocky Horror. Featuring rare interviews with key cast and crew— like Jim Sharman, Patricia Quinn, Nell Campbell—and devoted fans worldwide, Andreas Zerr crafts both an affectionate tribute and a critical narrative of a show that defied norms. With unseen footage and personal testimonies, the film captures how a midnight cult became a symbol of liberation and community.