Bloodmoon
The Long Night
HBO spent millions on a Game of Thrones prequel pilot starring Naomi Watts, watched the finished episode, and declined the series.
Quick facts
- Existence state
- Never Born
- Peak stage
- near release
- Research confidence
- high
- Last verified
What it was
A completed but unaired television pilot set thousands of years before Game of Thrones.
The project explored the transition from a heroic age into darkness, with an ensemble led by Naomi Watts and extensive Northern Ireland production.
Existence timeline
HBO selects Jane Goldman's distant-past prequel for production.
The lead performer joins the expanding ensemble.
The large pilot is filmed in Northern Ireland and elsewhere.
HBO receives a finished episode for internal evaluation.
HBO cancels the project without releasing the pilot.
Why it ended
After reviewing the pilot and facing uncertainty about its distant, less-defined era, HBO chose not to order a series and instead advanced House of the Dragon.
Last confirmed trace
Production photographs, cast testimony, reporting and a small amount of behind-the-scenes material survive; the pilot remains unreleased.
What it left behind
Bloodmoon is a rare modern prestige pilot completed at blockbuster scale but withheld while another prequel occupied its place.
How we classified it
The proposed archive unit never reached ordinary public access in the form being documented.
The strongest verified milestone maps to near_release under Arrival Score V1.
Sources & verification
Last reviewed 2026-08-01. Sources are linked so readers can inspect the evidence directly.