Okay, so you know how movies are made? Well, the Academy Film Archive is like a big library where they keep all the movies that have been made over the years.
But it's not just any library. It's a special library that takes care of the movies and makes sure they don't get damaged or lost. They also work really hard to restore old movies that might be damaged or lost so that people can watch them again.
It's kind of like if you had a big collection of toys that you wanted to keep safe and take care of. You wouldn't want them to get lost or broken, right? That's why the Academy Film Archive is important - it helps make sure that movies are kept safe and in good condition for people to enjoy for a long time.