Big budgets don’t always guarantee big success. Whether they launched major franchises, won Academy Awards, or became cultural phenomena, these movies far exceeded every expectation at the box office. Here are 15 of the cheapest movies that turned into huge hits. ©IMDbParanormal Activity (2007)Made for just $15,000, this found-footage horror film became one of the most profitable movies ever, earning nearly $194 million worldwide almost entirely through word of mouth. It went on to gross almost $250 million worldwide.