Ryan Reynolds, Jessica Alba, more: Sexiest superheroes & villains

Following last week's on-set pictures of Olivia Wilde dressed as a superhero in a cleavage-exposing catsuit for upcoming film The Incredible Burt Wonderstone, we take a look at a long list of sexy superheroes (and villains) - from Ryan Reynolds and Andrew Garfield to Jessica Alba and Michelle Pfeiffer - who've saved the world and seduced us on screen...