Natalie Portman – Thor

Natalie Portman ventured into the modeling world at the age of 11 and transitioned to acting in 1994 with a feature in Léon: The Professional. She now has credits in The Other Boleyn Girl, Thor, and Annihilation. Portman is slated for appearances in Thor: Love and Thunder, May December, and Foxy Trotter.

While she literally grew before our eyes, her most drastic screen transformation was in Black Swan. Just like it played out on-screen, she lost 20 pounds by going on a rigorous exercise routine and restricting her calorie consumption. It paid off in more ways than one because she won an Oscar and met her husband Benjamin Millepied while filming the psychological horror.