Rachel Weisz's Transformation
Credit: Getty Images

Happy birthday, Rachel Weisz! The British actress and former model turns 45 today. Weisz has made her mark as a Hollywood leading lady with films such as The Mummy and Constantine. In 2006, she earned a best supporting actress Golden Globe and Oscar for her role in The Constant Gardener. And the brunette beauty is no stranger to InStyle either—here's a throwback photo of her March 2013 shared cover with co-stars Mila Kunis and Michelle Williams from Oz the Great and Powerful. In honor of her birthday, take a look back at her best beauty moments.