A B movie is a low-budget commercial motion picture that is not an arthouse film. In its original usage, during the Golden Age of Hollywood, the term more precisely identified a film intended for distribution as the less-publicized, bottom half of a double feature. Although the U.S. production of movies intended as second features largely ceased by the end of the 1950s, the term B movie continued to be used in the broader sense it maintains today. In its post–Golden Age usage, there is ambiguity on both sides of the definition: on the one hand, the primary interest of many inexpensive exploitation films is prurient; on the other, many B movies display a high degree of craft and aesthetic ingenuity.
In either usage, most B movies represent a particular genre—the Western was a Golden Age B movie staple, while low-budget science-fiction and horror films became more popular in the 1950s. Early B movies were often part of series in which the star repeatedly played the same character. Almost always shorter than the top-billed films they were paired with, many had running times of 70 minutes or less. The term connoted a general perception that B movies were inferior to the more handsomely budgeted headliners; individual B films were often ignored by critics.
The Western is a genre of various arts, such as comics, fiction, film, games, radio, and television which tell stories set primarily in the later half of the 19th century in the American Old West, often centering on the life of a nomadic cowboy or gunfighter. Westerns often stress the harshness of the wilderness and frequently set the action in an arid, desolate landscape of deserts and mountains. Specific settings include ranches, small frontier towns and saloons of the Wild West. Characters typically include Native Americans, bandits, lawmen, outlaws and soldiers. Some are set in the American colonial era.
Western films first became well-attended in the 1930s, and were highly popular throughout the 1950s and 1960s. Many of the most acclaimed Westerns were released during this time – including High Noon (1952), Shane (1953), The Searchers (1956), and The Wild Bunch (1969). Classic Westerns such as these have been the inspiration for various films about Western-type characters in contemporary settings, such as Junior Bonner (1972) set in the 1970s and The Three Burials of Melquiades Estrada (2005) in the 21st century. The Western was the most popular Hollywood genre from the early 20th century to the 1960s.