Four miles west of Lone Pine, California, nestled in the Alabama Hills along the portal road to Mount Whitney, sits Nightmare Rock. The Alabama Hills are a popular filming location for television and movie productions, especially Westerns set in an archetypical "rugged" environment. Since the early 1920s, 150 movies have been filmed here, including Tom Mix films, Hopalong Cassidy films, The Gene Autry Show, and The Lone Ranger. Classic films include as Gunga Din, Springfield Rifle, The Violent Men (1955 film), Bad Day at Black Rock (1955), the Budd Boetticher/Randolph Scott "Ranown" westerns, part of How the West Was Won, and Joe Kidd. More recent productions include Tremors, Django Unchained, Iron Man and Gladiator.