South Africa, March 6 -- The project, currently in development at Warner Bros., will reportedly focus on the story of Aegon Targaryen's conquest of Westeros - the historic event that united most of the Seven Kingdoms roughly 300 years before the events of the original series. The screenplay is being written by Beau Willimon, known for his work on House of Cards and Andor.

The news comes after it was announced that Netflix is dropping out of the race to acquire Warner Bros. Discovery.

The move expands one of HBO's most successful franchises. During its eight-season run, Game of Thrones became the network's most-watched series, with later seasons averaging more than 25 million viewers per episode across platforms.

The film is part of a w...