Ida Lupino, a leading actress, established herself as Hollywood's sole female director of the era. In short, low-budget pictures made for her production company, The Filmakers, Lupino explored virtually taboo subjects such as rape in 1950's "Outrage" and 1953's self-explanatory "The Bigamist". Her best known directorial effort, "The Hitch-Hiker", a 1953 RKO release, is the only film noir from the genre's classic period directed by a woman. That year, RKO released "Split Second", which concludes in a nuclear test range, and is perhaps the first "atomic noir".