The 1960s and 1970s marked the rise of exploitation style independent B movies; films which were mostly made without the support of Hollywood's major film studios. As censorship pressures lifted in the early 1960s, the low-budget end of the American motion picture industry increasingly incorporated the sort of sexual and violent elements long associated with so-called ‘exploitation’ films. The demise of the Motion Picture Production Code in 1968 coupled with the success of the exploitation film Easy Rider the following year fuelled the trend throughout the subsequent decade. The success of the B-studio exploitation movement had a significant effect on the strategies of the major studios during the 1970’s. Cheesecake and choppers: 1960s Despite the many transformations in the industry, the average production cost of an American feature film was effectively stable over the course of the 1950s. In 1950, the figure had been $1 million; in 1961, it reached $2 million—after adjusting for inflation, the increase in real terms was less than 10 percent. The traditional twin bill of B film preceding and balancing a subsequent-run A film had largely disappeared from American theaters. The dual genre-movie package, popularized by American International Pictures (AIP) the previous decade, was the new face of the double feature. In July 1960, the latest Joseph E. Levine sword-and-sandals import, Hercules Unchained, opened at neighborhood theaters in New York. An 82-minute-long suspense film, Terror Is a Man, produced by a Manila-based, American-Philippine company, ran as a "co-feature." It had a now familiar sort of exploitation gimmick: "The dénouement helpfully includes a 'warning bell' so the sensitive can 'close their eyes.'" That year, Roger Corman took American International down a new road: "When they asked me to make two ten-day black-and-white horror films to play as a double feature, I convinced them instead to finance one horror film in color." A period piece in the vein of Britain's Hammer Films, House of Usher was a success, launching a series of Poe-based movies Corman would direct for AIP. It also typifies the continuing ambiguities of B-picture classification. House of Usher was clearly an A film by the standards of both director and studio, with the longest shooting schedule and biggest budget Corman had ever enjoyed. But from a latter-day perspective, it is regarded as a B movie—that schedule was a mere fifteen days, the budget just $200,000, one-tenth the industry average. Low-budget-movie aficionado John Reid reports