Isla Fisher talks to Empire about playing The Tooth Fairy in Rise of the Guardians, as well as the joys of pretending to flap your arms very fast and the weirdness of swapping children's teeth for pieces of loose change.

Want to keep up to date with everything going on in the world of film?

Follow us on Twitter here: http://twitter.com/#!/empiremagazine
Fan us on Facebook here: http://www.facebook.com/empiremagazine
And subscribe on YouTube here: http://is.gd/yRxXu0
Subscribe to the mag / iPad edition here: http://is.gd/krICkq