Half a billion dollars. HBO has burned through about that much on House of the Dragon before Season 3 even airs. The new trailer just dropped, the show is back June 21, and a single episode costs about $20 million to shoot, the budget of a mid-sized Hollywood movie.For comparison: Game of Thrones at its peak ran $15 million per episode. Stranger Things hit $30 million in Season 4. Amazon's Rings of Power runs $58 million. HoTD lives in a cost neighborhood almost no other show can afford.S2 repor