The document provides an overview of the history and characteristics of action films. It discusses the origins of the genre in the 1920s with films like "The Great Train Robbery." Key developments included the rise of war and cowboy films in the 1940s-50s and the James Bond franchise in the 1960s. CGI became prevalent in action films starting in the 1990s with successes like "Star Wars" and "The Matrix." Common conventions of action films include guns, explosions, chase scenes, a good guy vs. bad guy plot, and destruction of property. Recent box office hits like "Fast and Furious 7" and controversies around films depicting war like "American Sniper" are also summarized.