Few things in Hollywood are stable. Careers fluctuate and celebrity marriages (aside from a few notable exceptions) crumble faster than that sleeve of Girl Scout cookies you shoved in your purse. Celebrity friendships, on the other hand, seem to be able to stand the test of time. Here are 15 celebrity besties whose off-screen friendships are as famous as they are.

1. Leonardo DiCaprio and Tobey Maguire

These two pals became best friends in the 80s, when they were both teen actors. "After I met Tobey at an audition, I felt like I wanted this guy to be my friend," DiCaprio has said. Over 25 years later, they are still best buds. "Every project we do, we talk about," said DiCaprio. "Every single choice I've made, I've talked to Tobey about and vice versa. We've had endless conversations about certain projects and argued with one another and supported one another along the way."