Throughout his career Warhol made numerous films, many of which were experimental and pushed the boundaries of what was considered acceptable in cinema. Filmed in Arizona in January 1968, `Lonesome Cowboys? was the last film that Warhol directed himself. Originally conceived as a tongue-in-cheek version of the traditional Hollywood western, it was ?supposed to be a Romeo-Juliet type story?. Yet it failed to deliver. Critical opinion was divided over many of Warhol?s films and although `Lonesome Cowboys? featured several Warhol `superstars? and followed his extremely popular 1966 film `Chelsea Girls?, it is generally considered one of his least successful works. It is particularly renowned for a violent scene which resulted in Warhol being put under FBI surveillance for a year.