The introduction of sound had driven costs higher: by 1930, the average U.S. feature film cost $375,000 to produce. A broad range of motion pictures occupied the B category. The leading studios made not only clear-cut A and B films, but also movies classifiable as "programmers" (also known as "in-betweeners" or "intermediates"). As Taves describes, "Depending on the prestige of the theater and the other material on the double bill, a programmer could show up at the top or bottom of the marquee."