Animation film lands Downey Jr

Robert Downey Jr has signed to star as Mr Peabody in a new animated feature.

The 'Sherlock Holmes' star will take on the role of the genius dog - who along with his pet boy Sherman, appears in the 'Rocky and Bullwinkle Show' - in the big screen tale of his adventures as he travels through time using his WABAC time machine, learning about history's greatest figures.