New Delhi, Aug. 18 -- British actor Sir Ian McKellen has revealed that Gandalf and Frodo will appear in the upcoming 'Lord of the Rings' film 'The Hunt for Gollum'.

Speaking during a panel at the For Love of Fantasy convention in London, McKellen shared this news with fans, though he remained tight-lipped about who would play the roles.

"I hear there's going to be another movie set in Middle-earth, and it's going to start filming in May," McKellen said. "It's going to be directed by Gollum and it's all about Gollum. I'll tell you two secrets about the casting: there's a character in the movie called Frodo, and there's another character called Gandalf. Apart from that, my lips are sealed!"

McKellen, who famously played the wizard Gandal...