Game of Thrones was the biggest show on television, so it's no wonder HBO spent big on trying to deliver a spin-off. Unfortunately, the first attempt at a new show set in the world of Westeros was not a success – and ended up costing the network $30 million as a result.
Jane Goldman, best known for penning the first Kingsman movie and X-Men: First Class, wrote a pilot episode for HBO, with S.J. Clarkson (Succession, Jessica Jones, The Defenders, Dexter) as director. Naomi Watts was cast in a
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