Not only is Anne Hathaway’s mile-wide smile our favorite — she’s constantly pulling it out. Seriously, she smiles a lot, and we love that about her. We’ll take a grinning, happy actress over a sulky, pouty one any day.

Honorable mentions: Rachel McAdams, Cameron Diaz, Jessica Alba, Eva Mendes, Scarlett Johansson, Katy Perry, Julia Roberts