I need the title of a movie in which a man wanting to die alone finds a young boy who is orphaned after his parents die in an RV accident. He teaches the boy to how survive in the wild or die, knowing that he can't and really doesn't want to care for the boy. Thank you!

The Earthling (1980) (http://www.imdb.com/title/tt0080671/)

Thank you so much! My mother has wondered about that movie for a year now. I'll make sure I watch it, it really impressed her.

You're very welcome.