I love this kind of cinematic Inside Baseball. As Kottke writes,
This is a clever bit of TV/film analysis by Evan Puschak: he reconstructs the Loot Train Battle from the most recent episode of Game of Thrones using clips from other movies and TV shows (like 300, Lord of the Rings, Stagecoach, and Apocalypse Now). In doing so, he reveals the structure that many filmed battle scenes follow, from the surprising enemy attack presaged by the distant sound of horses (as in 300) to the quiet mid-chaos reflection by a shocked commander (as in Saving Private Ryan).