House Targaryen apparently isn't just satisfied with conquering our small screens. It's coming for the big screen, too. According to Page Six Hollywood , Warner Bros. is working on a Game of Thrones prequel film. Andor writer and House of Cards showrunner Beau Willimon is attached as screenwriter, and has reportedly already submitted a draft of the film's screenplay. While the plot remains under wraps, Page Six reports that the film will center on King Aegon I Targaryen and his conquest of Westeros. The conquest took place nearly 300 years before Game of Thrones itself, and Aegon carried it out alongside his sister-wives Visenya and Rhaenys. (Even in movie form, you can't escape Targaryen incest.) Mashable Top Stories HBO has been discussing a TV show about Aegon the Conqueror since 2023 . Among these discussions was the possibility of a companion feature film that would lead into the series.…