Why broccoli holds the secret to movie franchises, what scaring mice has to do with staying relevant, and why nerds and geeks will rule the world. — In 1998, none of the top 10 biggest films were sequels or superhero movies, and films based on comics accounted for just 0.69% of the box office. In 20 years, a lot has changed. In 2018, all of the 10 biggest films were either sequels, prequels, or extensions of a…