Wizard of Oz film 'magical' part for Michelle Williams

Golden globe winner Michelle Williams stars as the good witch of the north in Sam Raimi's re-imagining of The Wizard of Oz.

Oz The Great And Powerful is a prequel to the the familiar Wizard of Oz story made famous by the 1939 film.

The new 3D version tells the untold story of charming con-man Oscar Diggs's journey to Oz.

The BBC's Charlie Stayt spoke to Michelle Williams about standing on the yellow brick road.