TheGame of Thrones franchise may be shifting from TV to movies.According to a new report fromThe Hollywood Reporter, Warner Bros. is in very early stage development on a movie based on George R.R. Martinsepic fantasy saga, no filmmaker, cast or writer yet attached. But the company is keen on exploring the idea of Westeros invading cinemas.Until now,Game of Thrones has been a cornerstone of Warner Bros. TV offerings on HBO and later on the Max streaming service. While the centralGame of Thrones TV series concluded 2019 after eight seasons and 73 total episodes, it has continued on via multiple spinoffs.House of the Dragon, a prequel series, is already a hugely successful show in its own right, and Warners is also prepping multipleother spinoff shows set in the fantasy realm of Westeros, including A Knight of the Seven Kingdoms.15. Game of Thrones (2011 - 2019)HBOloading...READ MORE: 10 Once-Beloved TV Shows That Have Been ForgottenFor many years, Warner Bros. was hesitant to do anything with theGame of Thrones property outside of TV. There were reports that the creators of the Game of ThronesTV show wanted to finish the original series with a trio of movies in lieu of a final season on HBO. That never happened but it looks like with the show now completed, and Warners always hungry for surefire hits, they have reconsidered their small-screen only position.THR notes that Warner Bros. is already making both moviesand shows of some of their other franchises, includingThe Batman andDune.In other words, if it works for those big IPs, why notGame of Thrones as well?A Knight of the Seven Kingdomsis expected to premiere on HBO and Max in 2025.Get our free mobile app10 Famous TV Actors Who Never Had a Successful Film CareerWhether they tried or not, none of these actors had the same success in movies that they did on the TV shows that made them famous.