The “Game Of Thrones” prequel series starring Naomi Watts will not be moving forward at the network.

The pilot for writer Jane Goldman’s series was filmed over the summer with Watts and a cast that includes Jeffrey Campbell Bower and Miranda Richardson.

The prequel series was reported to focus on the “Age Of Heroes” and the first battle between humans and White Walkers. The Hollywood Reporter confirms the series has been dropped with Goldman emailing the cast and crew to deliver the news.

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Entertainment Weekly reports the outlet knew of the pilot cancellation weeks ago.

The news of the series cancellation comes shortly after HBO announced a second pilot based on George R. R. Martin’s Fire & Blood was in the works. That series is said to be set on the continent of Westeros within 300 years before the events of “Game Of Thrones” and it will tackle the downfall of House Targaryen.

Days after the initial report, HBO confirmed the news with a statement.

“After careful consideration, we have decided not to move forward to series with the Untitled Game of Thrones prequel,” reads the statement, via Deadline. “We thank Jane Goldman, S.J. Clarkson, and the talented cast and crew for all of their hard work and dedication.”

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