Riding Giants: http://www.imdb.com/title/tt0389326/ Pretty light fare, but the film footage is beautiful.

Driver 23: http://fenrisfilms.com/films.html Awkward, almost painful to watch, but hard to look away.

Bigger, Stronger, Faster: http://www.imdb.com/title/tt1151309/ Unfortunately, this is the only one of these three available on Netflix Instant.