Wondering how the Battle of Tumbleton in the House of the Dragon Season 3 finale all came together? Judging by the behind-the-scenes video above, it took a lot of planning.

The 20-minute mini doc features interviews with all the key players involved in the sequence, including showrunner Ryan Condal and director of photography Vanja Černjul, the latter of whom describes how he and episode director Andrij Parekh used tiny figures and a scale model of Tumbleton to plan the battle.

The highlight? Tommy Flanagan, aka Roddy the Ruin, sat wearing sunglasses while casually describing the colourful way in which he kills Lord Ormund Hightower (James Norton).

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