fiction (Mad Max, Blade Runner, RoboCop), and comedy (48 Hrs. and Beverly Hills Cop). 1970s Offshoots of the police thriller is the vigilante film, in which an avenger in an urban setting throws off the restraints of the super cop of the police thrillers to operate as a loner without a badge or uniform. The main characters usually revolve around personal revenge and desire to cleanse society of its evil doers. Examples include the Death Wish film series, Taxi Driver (1976) and Ms. 45 (1981). A cycle of action films featuring black leads that came from the police thriller, vigilante films, and blaxploitation films arrived with the 1970s. The films predominantly feature loose-cannon private eyes such as in Shaft (1971), Slaughter (1972) and Coffy (1973) or hustlers such as in Super Fly (1972) and The Mack (1973). The films were often derivations of earlier films such as Cool Breeze (1972), a remake of The Asphalt Jungle, Hit Man (1972) a remake of Get Carter (1971), and Black Mama, White Mama (1973) a remake of The Defiant Ones (1958). The cycle generally slowed down by the mid 1970s. During the 1970s, contemporary situations such as the Watergate scandal and disillusionment about the Vietnam War led to conspiracy thrillers. A cycle of these films included Executive Action (1973) about the assassination of President John F. Kennedy, The Parallax View (1974) about a sinister corporation linked to a series of political murders, and others like The Conversation (1974) and Winter Kills (1979). Unlike other films of the past, the paranoia of these films often focused on American institutions opposed to gangsterism or communists. A thriller-related movement in the 1970s was the disaster film, which came with the great financial success of Airport (1970), about an airplane crippled by a bomb that struggles to land in a snowstorm. Similar films about a group of survivors escape several locations, such as The Poseidon Adventure (1972), The Towering Inferno (1974) and Earthquake (1974) about a group of troubled people in Los Angeles. The films often featured all-star casts and often had the disaster happening early or mid-way into the story rather than at the climax with the narrative focusing on the group of survivors. The genre ended following overt sequels, television films and parodies. The genre had a brief revival in the late 1990s through the science-fiction and disaster hybrid Independence Day (1996), which was followed