Comic-Con 2012: Sir Ian McKellen Returns As Gandalf The Grey In The Hobbit

Sir Ian McKellen was very pleased to take on the role of Gandalf again for “The Hobbit: An Unexpected Journey,” but what were some of the challenges of shooting the film? Plus, as the original Magneto in the “X-Men” movies, what did Ian think of Michael Fassbender’s take on the role in “X-Men: First Class”? Also, would Ian ever want to play Magneto again?