MUMBAI: A glut of Bollywood sequels are due out in the coming months, prompting questions about whether the industry has run out of ideas or is just milking a successful formula in troubled times. More than a dozen follow-ups are in the pipeline, including “Bheja Fry 2” (Brain Fry), a second “Dabangg” (Fearless), a third in the “Dhoom” franchise and another installment of the “Golmaal” series. Shah Rukh Khan is also getting in on the act, with a sequel due out by the end of the year of his hit “Don”. The action film, in which the actor reportedly does his own stunts, is currently in post-production. Bollywood studios are increasingly desperate for a money-spinner, with box office takings in the Indian film industry as a whole down for the last two years and the lack of original, quality script-writing a common complaint. But “Bheja Fry 2” director Sagar Ballary rejected the notion that follow-ups are an easy option and said success was not guaranteed. “I didn't rush to make the sequel immediately after the first film came out in 2007. We waited for the right script to make this part two,” he said. “Every film stands on its own. Whether it's a sequel or not, the film has to be good to work.”