Thanks to the success of the new "Captain America" movie, the Marvel superhero movies are now the highest-grossing movie franchise in U.S. history.  They've made $2.48 billion ... surpassing the previous #1, "Harry Potter", which now sits at #2 with $2.39 billion.  "Harry Potter" is still the top-grossing franchise worldwide though.

Check out a massive list of the top-grossing franchises.  

It includes everything from "Twilight" on down to the "Ernest" movies.