BBC News | Grown-up Harry walks the red carpet The Age Actors Maggie Smith and Rupert Grint share a light moment on the red carpet as they arrive for the world premiere of Harry Potter and the Half Blood Prince . Photos Fans line the streets in London for a glimpse of the Harry Potter stars at the world ... Harry Potter and the Half-Blood Prince Harry Potter premiere hit by thunderstorms - see the pictures Emma Watson not quitting films |