Harrison Ford and Calista Flockhart (22 Years)
When Harrison Ford and Calista Flockhart first became an item back in 2002, he was on top of the world as a legendary actor, famous for some of the most iconic movie roles in history, and she was a much younger, out of nowhere actor in a sitcom. The pairing seemed odd to say the least, and many predicted that the couple wouldn’t last through Christmas of that year. Well, the Ford/Flockhart union not only made it past that Christmas, they continue on to this day, some 20 plus years later.