Warner Bros.

You know you’re starting to feel old when movies you loved — even went out to buy them on DVD — are turning 20. From cult classics like Donnie Darko to what was just the first chapter of the wildly successful The Fast and Furious franchise, each film defines a cultural moment in its own way. We can’t forget comedies that really don’t make any sense like Zoolander, but are just as respected all these years later. Revisiting these films will bring back all the nostalgia from simpler, more youthful times in our lives. Here are 18 movies that are turning 20 this year...