Burton trains up squirrels for Wonka film

Director Tim Burton has spent six months training 200 squirrels for a scene in his latest movie Charlie and the chocolate factory.

The original 1971 movie didn't include any animals, but the eccentric film-maker was so desperate to create the 'nut room' from Roald Dahl's original novel, he spent millions of dollars teaching the bushy-tailed rodents how to crack nuts and load them onto a conveyor belt.