The term B movie originally referre to a motion picture made on a low or modest budget and intended for distribution as the less-publicized, bottom half of a double feature during the so-called Golden Age of Hollywood. Although the U.S. production of movies intended as second features largely ceased by the end of the 1950s, the term B movie continues to be used in a broader sense, referring to any low-budget, commercial motion picture meant neither as an arthouse film nor as pornography. In its post–Golden Age usage, there is ambiguity on both sides: on the one hand, many B movies display a high degree of craft and aesthetic ingenuity; on the other, the primary interest of many inexpensive exploitation films is prurient. In some cases, both are true.