The old cast members of Lord of the Rings recently had dinner together after 15 years of the release of their first film together, and their group selfies made Instagram crazy. In 2014, the cast of Mean Girls broke the Internet with a photoshoot to mark the 10th anniversary of their famous and hit drama. Whether these great meet-ups make your heart skip a beat, or make you feel old enough to be somebody’s great-grandparent, they’re a charming look at how the celebrities change over time. We’re looking at you, Lindsay Lohan. Check out the 10 famous reunions below.