'Game of Thrones' prequel starring Naomi Watts has begun filming under working title 'Bloodmoon'

George RR Martin has confirmed that none of the current characters of the show will make it to the prequel as it is set thousands of years before the events of the HBO show

As HBO phenomenon 'Game of Thrones' wraps up its eight-year-long run with the series finale this coming Sunday, fans were thrilled to know that filming for the show's prequel has already begun!

What's better? We have a working title too!

Reportedly titled 'Bloodmoon', the filming began in Belfast nearly two weeks ago, shared The Sun.

What we do know is that the prequel is set to follow the story of the earliest inhabitants of Westeros - the Children of the Forest, who were the ones behind the creation of the Night King, as we know him. With principal photography well underway, it doesn't look like fans will have to wait for much longer before the production hits our screens, so let's keep our fingers crossed and hope the wait is worth it.

The Game of Thrones prequel called Bloodmoon will follow the story of the Children of the Forest, who created the Night King. Source: HBO

Set five thousand years before the events of the original HBO show, the prequel stars Naomi Watts as a lead character. She will play a 'charismatic socialite hiding a dark secret,' according to Variety. And that's all we know about her character, as everything else has been kept tightly under wraps.

A stellar ensemble cast is reportedly working on the show, but no names have been revealed as of now. The outlet also mentioned that the prequel will reveal the horrifying secrets of not only Westeros but also the secrets behind the origins of the White Walkers.

George RR Martin, the author of the books that the HBO show is based on, has confirmed that none of the current characters on the show will make it to the prequel as it is set thousands of years before their time. But his books also reveal valuable information about the Children of the Forest, who have been described as otherworldly nonhuman creatures who used ot be the original inhabitants of the city.

These mysterious beings were already living in Westeros when the First Men migrated to the continent, but that was 12,000 years before Robert's Rebellion, so there's no chance for any of our favorites from GoT of making it to the prequel is that timeline is followed strictly.

Even though Martin has shared that this prequel is not a spin-off, the upcoming show - created by Jane Goldman - will be one of the five Game of Thrones prequels that are currently underway.

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