There're called shoes!

The great thing about animated & more specifically computer animated films that we get to see trailers months, and sometimes years, ahead of the film's release. This time we have the latest one from The Croods.

The Croods is a prehistoric comedy adventure that follows the world’s first family as they embark on a journey of a lifetime when the cave that has always shielded them from danger is destroyed. Travelling across a spectacular landscape, the Croods discover an incredible new world filled with fantastic creatures -- and their outlook is changed forever.

In cinemas March 22, 2013.