Avatar: The Last Airbender is a millennial favorite. The original series ran for 61 episodes in the mid 2000s, and its popularity helped it spawn a whole franchise. It got a sequel series in The Legend of Korra, a live-action Netflix series, the upcoming animated series Avatar: Seven Havens, and numerous novels and comics tie-ins. What was that? M. Night Shyamalan also directed a live-action Avatar film? Can’t recall.
