Dirt! The Movie.(Brief article)(Video recording review)

Dirt! The Movie. color. 80+ min. Bill Benenson & Gene Rosow, Common Ground Media, dist. by Bullfrog Films, 800-5433764; www.bullfrogfilms.com. 2010. DVD ISBN 9781594589409. $295. Public performance; SDH subtitles. Public library discounts available, home version Docurama c/o New Video, 800-314-8822; www.newvideo.com. DVD ISBN 9781422978658. $26.95. ENVIRONMENT

This award-winning film is based on William Bryant Logan's 1995 book, Dirt: The Ecstatic Skin of the Earth. Land-based life depends on deep fertile soil, but humans are degrading this resource much more quickly than it can be renewed. With clips of various experts and 20 international locations, the action can be …