https://cdnph.upi.com/ph/st/th/3991781282069/2026/upi/e463e8d4ae9ab5d07e7ab67167f735d7/v1.5/House-of-the-Dragon-cast-tease-bigger-and-badder-Season-3.jpg" /> HBO released a "House of the Dragon" featurette about the "extraordinary" scale of Season 3 and its world record-setting battle sequence.