Kate Winslet, Emma Thompson, Daniel Radcliffe, Emma Watson and Helen Mirren among those remembering the giant of movies and theatre " known best to many as Professor Snape in Harry Potter " who has died at the age of 69 Related: Alan Rickman: the most loyal, playful and generous of friends | Katharine Viner The world of stage and screen is in mourning for one of its most singular and best-loved stars. Alan Rickman di…
