When the cast of a beloved movie or TV series reunites years after the credits stop rolling, time stands still for a moment, and fans can't help but get a little emotional.
The old castmates of Lord of the Rings recently had dinner together 15 years after the release of their first film together, and their group selfies made Instagram users lose their absolute minds. In 2014, the cast of Mean Girls broke the Internet with a photoshoot to mark the 10th anniversary of their legendary drama. Whether these monumental meet-ups make your heart skip a beat, or make you feel ancient enough to be somebody's great-grandparent, they're a fascinating look at how the stars change over time. We're looking at you, Lindsay Lohan.
Have some of our favourite celeb reunions below, and try to figure out who's older - you, or them.
Lord Of The Rings: 2001 Vs. 2017
Forrest Gump: 1994 Vs. 2014
Friends: 1994 Vs. 2004 Vs. 2016
Pretty Woman: 1990 Vs. 2016
Star Wars: 1980 Vs. 2013
Ghostbusters: 1984 Vs. 2016
Harry Potter: 2002 Vs. 2014/2015
The X-Files: 1993 Vs. 2015
Mean Girls: 2004 Vs. 2014
Sex And The City: 1998 Vs. 2010
Star Trek: The Next Generation 1987 Vs. 2012
The Sisterhood Of The Traveling Pants: 2005 Vs. 2013
Lost: 2004 Vs. 2014
Lizzie Mcguire: 2001 Vs. 2015
Ugly Betty: 2006 Vs. 2016