India, Aug. 18 -- British actor Ian McKellen, known for bringing Gandalf the Grey to life in Peter Jackson's The Lord of the Rings trilogy, has hinted that he may be stepping back into Middle-earth. Appearing at a fan event in London over the weekend, the actor revealed some surprising details about the upcoming Gollum-centered film.

"I hear there's going to be another movie based in Middle-earth, and it's going to start filming in May. It's going to be directed by Gollum, and it's all about Gollum," Ian told the audience, as reported by Entertainment Weekly.

He then went a step further. "I'll tell you two secrets about the casting: There's a character in the movie called Frodo, and there's a character in the movie called Gandalf. Apart...