George RR Martin Says ‘Game of Thrones’ Prequel Pilot Will Be Called ‘The Long Night’

Naomi Watts recently landed leading role in HBO project

George R.R. Martin was so excited to welcome Naomi Watts into the “Game of Thrones” family yesterday that he might have slipped up and revealed the name of the HBO fantasy series’ prequel pilot. Or, you know, decided to give it away for free.

“Casting is now underway for THE LONG NIGHT, the first of the GAME OF THRONES successor series to ordered to film,” Martin wrote on his Not a Blog blog Tuesday. “HBO has just announced the first cast member: NAOMI WATTS is coming on board as one of our stars. I could not be more excited.  Welcome to Westeros, Naomi.”

OK, so yes, HBO did announce Watts’ casting as a charismatic socialite hiding a dark secret — but that was it. No further details were given about her character, the plot or the prequel pilot’s title.

An an individual with knowledge of the project tells TheWrap it remains untitled. So take what Martin is saying with a grain of salt from the Narrow Sea.

Ordered to pilot earlier this year, the project from Martin and “Kingsman” screenwriter Jane Goldman is set thousands of years before the events of the current “Game of Thrones” series in the era known as the “Age of Heroes.”

According to HBO, the drama “chronicles the world’s descent from the golden Age of Heroes into its darkest hour. And only one thing is for sure: from the horrifying secrets of Westeros’ history to the true origin of the white walkers, the mysteries of the East to the Starks of legend … it’s not the story we think we know.”

Goldman wrote the pilot from a story she developed alongside Martin. She will serve as showrunner and will executive produce alongside Martin, James Farrel, Jim Danger Gray, Vince Gerardis and Daniel Zelman. Chris Symes is co-executive producer.

“Meanwhile, there are still a couple of other possible prequels in active development,” Martin wrote on his blog, addressing other “Game of Thrones” projects HBO had been considering — though we’ve heard nothing about movement on any pilot but this one for now. “I can’t tell you the subject matter of those projects, no, sorry, wish I could.”

HBO had no comment on the prequel pilot’s title — or Martin’s comments about other prequels — when reached by TheWrap.