an off-beat, low-budget, second-tier film, usually from an independent producer; they were predominant from the 1920s to the late 1940s; they were shot quickly with little-known, second rate actors, short run times, and low production values; often the second film (or the 'lower half') of a double- feature, and paired with an A-feature; the vintage B-movie began to decrease in the 50s, or morphed into inferior TV series; sometimes B-films were exclusively shown in agrindhouse, especially in the 50s and 1960s; as code restrictions waned in the late 60s, B-films often becameexploitation films, which added sensational and catchy titles, campy acting, cheesy special effects, and gratuitous violence and sexuality (nudity); contrast to A- pictures (first-class, big-budget films with high-level production values and star-power); not to be confused with cult films, although some B-films attained cult status