(Cover) - EN Showbiz - Kristen Stewart's self-confidence has been boosted by her latest role.

The American star is best known as Bella Swan in the hugely popular Twilight movie franchise. She's previously admitted she finds being in the limelight tough and gets embarrassed when she has to walk the red carpet.

The actress is currently shooting Snow White and the Huntsman, in which she plays Snow White. Chris Hemsworth is The Hunstman, who ends up becoming Snow White's protector in the reworking of the classic tale. Kristen loves the role and has enjoyed putting her all into it.

"You know how she's always kind of dug her shoulders in, looked a little like she's digging her teeth?" a source told E! Online.

"Well, she is now so different. Those shoulders are back, sister, and she is proud! It's a nice change from her past roles."

It's thought Kristen's character is savvy and strong, which is why she's enjoyed playing her so much.

Shooting only began recently but the whole cast have already started bonding. The movie also stars Charlize Theron as The Evil Queen and Ian McShane and Ray Winstone.

"She's doing great, having a really great time filming," the insider assured. (C) Cover Media