Game of Thrones author George R.R. Martin has revealed that a movie based on the property is being discussed, and could be used to help "tie things up".
The critically acclaimed TV series, based on Martin's books, is now in its fourth season and Martin claims a Game of Thrones movie is entirely dependent on how long the show runs on the small screen.
"It all depends on how long the main series runs," Martin told The Hollywood Reporter.
"Do we run for seven years? Do we run for eight? Do we run for 10? 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."
Martin also said that Tales of Dunk and Egg, his prequel series featuring ancestors of characters seen in Game of Thrones, could also make the move to the big screen.
"They could be the basis for [a film]," added Martin added.
"I have written these three stories, and I have about a dozen more."