Happy 40th birthday to the unbelievably talented and ageless Mary Elizabeth Winstead! It's hard to believe that the star of "Scott Pilgrim vs. the World" and "Birds of Prey" is now officially in the fabulous over 40 club. But let's be real, you've been rocking that cool, composed and kickass vibe since day one. Here's to many more years of slaying on and off screen. Cheers to you, Mary Beth!