Stewart: Hemsworth's a cry-baby!

Kristen Stewart would like Chris Hemsworth to stop talking about being knocked out.

The petite Twilight star accidentally punched her Snow White And The Huntsman co-star in the face during filming, but wants to draw a line under the incident now.

"Yeah, I didn't mean to. I accidentally caught him and he's still crying about it," she joked.

Chris - who portrays the huntsman - has joked about Kristen, who plays the titular princess, having a large fist.

"I think that's why he is saying that stuff - it's because he saw the glee in my face before, when I said, 'Oh my God. I'm really sorry, I didn't mean to'. He saw that moment of realisation," the actress continued.

Kristen had only compliments for Oscar-winner Charlize Theron, who plays the evil Queen Ravenna.

"She does things for herself. She loves what she does, she's not doing it for other people. She's not a performer, she wants to experience things, and she's hilarious, she's really funny."

The 22-year-old also loved getting the chance to play a feisty heroine.

"I loved the fact that we could do a kick-a** Snow White and actually still play a Snow White that people would recognise. This reimagining is... a twisted darker version but... it's so stunningly beautiful and makes it all worthwhile."

:: Snow White And The Huntsman opens in cinemas on May 30.