Sci-fi movies come with their fair share of surprises, from uniquely mindblowing concepts to breathtaking worlds beyond our imagination. Surprises can even come in the form of long-awaited crossovers of famous sci-fi characters and creatures. For instance, Alien vs. Predator is a horror movie that gets a lot of flack, but it offers viewers a chance to see the two iconic creatures from their franchises meet up in a large-scale blockbuster event. Similarly, the Monsterverse movies featuring Godzilla and King Kong provide viewers with the surprising match up of two of the most famous monsters in the genre's history.