ehind-the-scenes look at the concluding film in the fantasy saga. Ben Shephard finds out about the production team’s use of CGI to portray Hogwarts, how 2,000 wands were needed in the film’s epic battle, and that the Great Hall had to be destroyed and rebuilt three times during filming. Daniel Radcliffe reveals how he wants to keep Harry’s glasses, and he, Emma Watson and Rupert Grint share their feelings on the end of an era. With contributions by Helena Bonham Carter, Tom Felton and Julie Walters