"I'll tell you two secrets about the casting," the veteran actor teased the crowd about The Hunt for Gollum, which is being directed by Andy Serkis, who plays the eponymous One Ring-obsessed cave-dweller. "There's a character in the movie called Frodo, and there's a character in the movie called Gandalf. Apart from that, my lips are sealed!"

Sir Ian McKellen suggested that he and Elijah Wood will reprise their roles from 'The Lord of the Rings' in the upcoming movie 'The Hunt for Gollum' at a fan event in London on Aug. 17. "I hear there's going to be another movie set in Middle-earth,