The Hunger Games franchise is still generating headlines to this day. However, we bet that even the most adoring fans don’t know all of the behind-the-scenes secrets from the original movies.

Starring Jennifer Lawrence, Josh Hutcherson and Liam Hemsworth, the franchise tells its story across four movies.

It all started 12 years ago today (March 23) with The Hunger Games in 2012. Only three years later, the franchise closed out with 2015′s Mockingjay Part 2.

In honor of the movie’s big birthday, we did some digging and rustled up 10 secrets from the franchise, including details about Jennifer‘s pay and the scene she hated to film, on-set injuries, roles that almost went to other actors and the moment that resulted in damage to a sacred site.

Take a look and let us know if anything surprised you!

Scroll through the slideshow to check out 10 secrets from the set of The Hunger Games…