Unfinished Song 2012 Watch Online Full Movie. A feel-good, heart-warming story about how music can inspire you. Song for Marion stars Terence Stamp as Arthur, a grumpy pensioner who can’t understand why his wife Marion (Vanessa Redgrave) would want to embarrass herself singing silly songs with her unconventional local choir. But choir director Elizabeth (Gemma Arterton) sees something special in the reluctant Arthur and refuses to give up on him. As she coaxes him out of his shell, Arthur realizes that it is never too late to change.