14/05/2012 07:29 BST

'Snow White And The Huntsman': Kristen Stewart, Charlize Theron, Chris Hemsworth Unscripted

Snow White and the Huntsman's stars Kristen Stewart, Charlize Theron and Chris Hemsworth are set to walk the red carpet in London on Monday night for the world premiere of their new take on a classic fairytale.

In the video above, the stars of the British-made grittier version of Snow White answer fans' questions about the film, in a far less serious mood than you'll see them on screen. Even Kristen Stewart raises a smile - strange, but true.

In the original story, the huntsman is sent by the Evil Queen to kill Snow White but, upon meeting her, has a change in heart. In this film, director Rupert Sanders will go one step further by having the huntsman train Snow White to survive and fight back.

Theron plays Queen Ravenna, Stewart plays Snow White and Hemsworth stars as the huntsman. See what they have to say about making the action-packed film above.

Check back later for photos and video of the threesome on the red carpet in London.