The plan for a "Game of Thrones" movie is being discussed, NME reports.

The HBO series based on the bestselling book franchise "A Song of Ice and Fire" by George R.R. Martin is reportedly being helmed for the big screen. Actor Charles Dance, who plays Tywin Lannister on the TV series, has hinted at the possibility of a "Game of Thrones" movie in an interview with Daily Beast.

"There's talk of eventually trying to do a feature film, but I don't know which of the storylines," Dance said. There's so much to cram into a film."

Dance is not the first person directly involved with the series to talk about plans to take the stories into the big screen. Martin has earlier expressed his desire to have a feature film to "tie things up" in his story.

"It all depends on how long the main series runs," Martin told The Hollywood Reporter in an interview in March. "Do we run for seven years? Do we run for eight? Do we run for 10?"

He added, "The books get bigger and bigger (in scope). It might need a feature to tie things up, something with a feature budget, like $100 million for two hours. Those dragons get real big, you know."

While Dance said he has no idea which of the storylines will be adapted for the "Game of Thrones" movie, Martin said the "Tales of Dunk and Egg" a series of prequel novellas is being considered. One of the tales focus on Ser Duncan the Tall, whose story happened 90 years before the events in "A Song of Ice and Fire."

"They could be the basis for [a film]," Martin said. "I have written these three stories, and I have about a dozen more."

Meanwhile, "Game of Thrones" is set to return for its fifth run on HBO next year. The show has already been renewed for a sixth season.