>>649859The Great Silence (1968).
There are childish (but enjoyable) films like Wilderness Family 1-3 and The Snow Walker (2003) and Never Cry Wolf (1983).
If you like more serious films, I recommend Walkabout (1971). When you're at it why not to watch Wake Up In Fright (1971). It's not really /out/, but it's set in remote parts of Australia and it's one of those movies you'll never forget.