They like to be the leaders of the high street fashion pack and Topshop have done it again, with their 1st ever Christmas Advert/film title Winter Wonderland. Not content on just doing a film they have an A list Hollywood Starlet, that they are keeping secret, starring in it. The full length film is due to be released on the 4th December. But until then they are teasing us with snippets. Who do you think the star is? She is meant to have HUGE style credentials…..