Lines (2007)

The documentary follows a crew of snowboarders for six weeks in the Chugach mountains, and showcases what it takes to ride these unique Alaskan mountains: the waiting, the stress, the dangers, everything that goes into it and is usually never shown. It also retraces some of the history of this unknown discipline and pays tribute to the pioneers. But the film really focuses on the human aspect and why these people do what they do.

Unfortunately the movie Lines is not yet available on HBO Max.