  stock footage, and similarly, archive footage, library pictures and file footage is film or video footage that can be used in other films. stock footage is beneficial to filmmakers as it saves shooting new material. a single piece of stock footage is called a "stock shot" or a "library shot".ephraim katz, the film encyclopedia, crowell, 1979. isbn 978-0690012040 stock footage may have appeared in previous productions but may also be outtakes or footage shot for previous productions and not used. examples of stock footage which might be utilized are moving images of cities and landmarks, wildlife in their natural environments and historical footage. suppliers of stock footage may be either rights-managed or royalty-free. many websites offer direct downloads of clips in various formats. ==history== stock footage companies began to emerge in the mid-1980s, offering clips mastered on betacam sp, vhs and film formats. many of the smaller libraries that specialized in niche topics such as extreme sports, technological or cultural collections were bought out by larger concerns such as corbis or getty images over the next couple of decades. ==movies and television== stock footage can be used to integrate news footage or notable figures into a film. for instance, the academy award-winning film forrest gump used stock footage extensively, modified with computer generated imagery to portray the lead character meeting such historic figures such as john f. kennedy, richard nixon, and john lennon. left|thumb|300px|videographer captures stock footage of a passing train outside las vegas: photograph by patty mooney. news programs use film footage from their libraries when more recent images are not available. such usage is often labeled on-screen with an indication that the footage being shown is file footage. television and movies series also often recycle footage taken from previous installments. for instance, the star trek franchise kept a large collection of starships, planets, backgrounds and explosions which would appear on a regular basis throughout star trek's five series and ten films, being used with minimal alteration. that kept production costs down as models, mattes, and explosions were expensive to create. the advances in computer graphics in the late 1990s and early 2000s helped to significantly reduce the cost of star trek's production, and allowed for a much wider variety of shots than previous model and painting based visuals. some series, particularly those made for children, such as power rangers or teletubbies, reuse footage that is shown in many episodes. meant for a young audience, the approach increases v
Film_techniques