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Behind the Scenes of Game of Thrones’ “Loot Train Attack”

[Spoilers.]

HBO typically releases an “inside the episode” video after each episode of “Game of Thrones.” These behind-the-scenes vids are typically just a few minutes long. But after Sunday’s epic episode, fans were treated to an extra-long behind-the-scenes look at how they created, among other things, the crazy sequences of a dragon strafing everything in sight.

Because CG doesn’t currently render convincing flames, real fire was used for much of the sequence, from attaching a flamethrower to a crane to using explosive charges to setting 20 stuntmen on fire at once. And the amount of follow vehicles–trucks, an electric jeep, a zipline camera, a souped-up drone–is just nuts: