Taking into account that the books in his popular fantasy series “A Song of Ice and Fire,” the basis for HBO’s popular show “Game of Thrones,” are getting bigger and bigger with each volume, author George R.R. Martin told The Hollywood Reporter that there are discussions to end the HBO series on the big screen with a bigger budget feature length film.

So far, Martin has only published the first five books in what was originally planned as a seven-part series, the latest installment being “A Dance with Dragons,” published in July 2011. Meanwhile, the HBO show is premiering its fourth season, this Sunday, April 6, which is said to begin by adapting the latter part of the third book. That means that the show could catch up with the books fairly soon, although Martin told the trade at the Lincoln Center premiere for the fourth season last night that the show may run longer than the books:

“It all depends on how long the main series runs. 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.”

The THR story also says that Martin’s three prequel novellas “Tales of Dunk and Egg,” set in Westeros 90 years before the events in “Game of Thrones,” is also being considered for the big screen treatment. The prequel’s characters including Ser Duncan the Tall are somehow related as direct ancestors to those in “Thrones,” according to the author, though he won’t reveal how.

One can probably safely assume that HBO’s corporate partner, Warner Bros. Pictures, who released two movies based on “Sex and the City” and will release the upcoming Entourage movie, would probably make and/or distribute any movie that concludes the show.

(Photo Edit: Ivan Nikolov/WENN.com)