A Game of Thrones film, which is set to bring Westeros to the big screen has been quietly in development at Warner Bros. The project is reportedly very early in development. No director, writer, or cast members have onboarded the project.

This move is expected them to bring in a significant shift in their strategy to expand the Game of Thrones universe. Earlier, the showrunners of the series (David Benioff and Dan Weiss), which is based fantasy novels by George RR Martin, looked at ending the show with three feature films instead of the final season which was released in 2019. Martin too approved of the idea and told media that the idea was being discussed.

However, in order to contain the series as a HBO property, the executives of the channel resisted the idea. Since then, there have been many changes to the ranks of the executives and the channel has opened its arms to experiment with cross-medium adaptations. This includes The Batman's HBO spinoff The Penguin, the Dune: Prophecy TV series and the much-anticipated TV series based on JK Rowling's Harry Potter novels.

Game of Thrones, which premiered in 2011, concluded in 2019 with eight seasons. A spinoff based on the Targaryen dynasty House of The Dragons and the devastating war of succession known as the "Dance of the Dragons", was released in 2022. A second season was released in June this year and a third season is also on its way. The network also has the upcoming prequel series A Knight of the Seven Kingdoms planned for 2025.