Hollywood movies had a great September, rebounding from a dreadful summer slump. “Amid 19 weekends of diminished box office — a record stretch that started in late February and ended in early July — many said they believed a cultural sea change was underway. Among the theories: People preferred to consume their entertainment in the comfort of their homes, whether watching DVDs on super-sharp plasma screens, surfing the Internet or playing video games.” The real reason? Movies nobody wanted to watch.