Christian Bale, Robert Downey, Jr., Eric Bana: Amazing Superhero Transformations (GALLERY)

Check out the star's hottest looks!
Christian Bale and more who have shed pounds for roles
The best actors know how to genuinely transform themselves for their roles.   That’s easy when you’re playing a dentist or a used car salesman – but what happens when your next role involves saving the world while you don a metal suit and matching spandex.

In today’s Celebuzz gallery, we spotlight Christian Bale, Eric Bana and other actors who have undergone the most shocking transformations to don their respective superhero costumes.

Like the A-listers featured in the gallery, Stephen Amell got himself in top physical condition for Arrow, the action-packed new show premiering on the CW on Wed., Oct. 10 at 8/7 c.

Find out more about Arrow and check out the extended trailer for the show!

Arrow stars Stephen Amell as billionaire playboy Oliver Queen, who dons a secret superhero identity to fight crime and make amends for the wrongs he has done in his past.  A hero unlike any other, and a show you simply can’t miss. Don’t miss Arrow, premiering on the CW on Wed., Oct. 10 at 8/7 c