13. After Earth
On paper, After Earth actually seemed pretty intriguing - a totally original post-apocalyptic blockbuster project dreamt up by Will Smith, who co-stars with his son Jaden. But ultimately this visually lavish $130 million sci-fi actioner turned out dull and even strangely forgettable.
Its biggest sin, evidently, is having Smith's absurdly-named Cypher Raige injured and sat in a chair for most of the movie, while Smith's son Jaden attempts to carry the leading man load despite lacking the charisma to do so.
It's not even fun in a so-bad-it's-good way - it's just a generic, boring tentpole movie with little personality of its own. Smith famously called it "the most painful failure" of his career, and it's easy to see why.
After Earth was Smith's attempt to hand a franchise to his son on a silver platter, and it fell woefully flat. He can take some solace in the fact that it still grossed $243.8 million worldwide, so it wasn't a complete commercial failure.