Fifty Shades

The trilogy adapted from E.L. James's Twilight fan fiction brought stilted dialogue and laughable performances to multiplexes worldwide, making it the second-worst on this list. Dakota Johnson and Jamie Dornan's complete lack of chemistry became a running joke, but the franchise still earned $1.3 billion globally, which is 40% less than Transformers, despite its lower budget. It's cheaper than the typical rival, with an average production cost of $55 million per film, yet delivers a 10% satisfaction rate among critics. The stark disparity between profit and quality is a hallmark of this series.