sir ian mckellan. >> such a pleasure to have him. >> and the latest installment of "the hobbit" trilogyher ka-ching after this. >>> he's starred in more than 40 movies, is no stranger to broadway, has racked up numerous awards, and has hosted "saturday night live." >> wow. >> what ian mckellan fans are most excited about is his return to the big screen in the second installment of "the hobbit" trilogy, "the hobbit: the decimation of smoug," playing gandolf the great. take a look. >> i found something in the tombs. >> found what? what did you find? >> my courage. >> good. that's good. you'll need it. >> oh, it's such an honor that you are with us -- >> one of the quiet moments in the movie which is full of action and tumbling and escaping and running -- >> and you did your own stunts? >> i'm not the only person to play gandolf. there's a stunt team double, rioting double, and cgi, the pretend -- all in the computer gandolf, as well. >> was a lot of this shot on cgi, or were you actually atop a mountain? >> if you see gandalf on top of a mountain, i was there. there were two months, we dr