DVD's Of Interested.
Dersu Uzala (You cant go wrong with Akira Kurosawa) (here as well)
Black Robe (Amazon link)
Quest For Fire (Amazon)
Walkabout (Amazon)
Atanarjuat (Amazon)
Kon Tiki (Asda)
Anasazi - Hisatsinom: The Ancient Ones
Metsa - Forest - Skog - Wald
The Great Canadian Wilderness Series:
Across The Great Divide
Land Of Extremes
The Wild Shore
(check ebay for these, i got mine for a quid each)