As Dick Van Dyke reached the remarkable milestone of 100 years old, tributes poured in, including one from actor John Stamos.

Taylor Swift is used to sharing the spotlight. But today, she's sharing more than just that. The pop superstar shares her December 13th birthday with one of Hollywood’s most legendary icons—an entertainer whose career began several decades before she was born, and who, this year, is celebrating an extraordinary milestone.

As part of the celebration this weekend, theaters around the country are showing a new documentary about his life.