10. Justice League
Rotten Tomatoes Tomatometer Score: 40%
Critics Consensus: "Justice League leaps over a number of DC movies, but its single bound isn't enough to shed the murky aesthetic, thin characters, and chaotic action that continue to dog the franchise."
Justice League will forever live in infamy as the biggest missed opportunity in a shared universe intent on fast-tracking its way to the top. That, coupled with the mismatch of styles between directors Zack Snyder and Joss Whedon, made it impossible for the film to succeed.
It made a lot of money, but it didn't make anywhere near enough and this rush-job of a gamble ended up costing Warner Bros. in and around $60 million. But there are redeeming qualities.
Justice League's biggest sin is that it's just inherently flat. It stays in the same place for the vast majority of its run-time, only occasionally rising to the challenge and it suffers from a plot that is both on-the-nose and by-the-numbers. Does that make it awful though? No, just flat.
If you can overlook that initial disappointment, however (and turn your brain off for a while), you might be able to enjoy the film during its better moments. Just don't look at Superman's face. Like, ever.