Superheroes don't always have super strength and heat vision, sometimes they have just super technology or a lot of prep time.

With that in mind, we'll be ranking the best superhero movies that flopped or significantly underperformed at the box office, meaning their total earnings were no more than twice their estimated ...

There are a few exceptions, however. Below, you'll find our rundown of superhero movies that actually succeed in making us care about their central pairings and the romances that blossom from them.