AGE 79: Woody Allen

Screenwriter, director, and actor

What makes him powerful: Allen is a prolific screenwriter and director, as well as a four-time Oscar winner, having won his first two for "Annie Hall." He hasn't stopped churning out critically acclaimed movies. "Blue Jasmine" was nominated for an Oscar in 2014, and Cate Blanchett took home an award for her performance in the film. Allen will make his first TV series for Amazon's Instant streaming service.

Another powerful 79-year-old: Julie Andrews is an actress and singer who will forever be known to many as Maria in "The Sound of Music" and the titular nanny in "Mary Poppins." More recently, she also starred in "The Princess Diaries" and voiced Gru's mother in "Despicable Me."