Ora predicts 'amazing shock' in '50 Shades' flick

Rita Ora says '50 Shades of Grey' film will be the "most amazing shock ever".

The 23-year-old singer stars as Christian Grey's adopted sister Mia in "incredible" Sam Taylor-Wood's forthcoming film alongside Jamie Dornan and Dakota Johnson - who have been cast as the sado-masochistic millionaire and his lover Anastasia Steele respectively.