Waited for years for this classic to go on DVD.  It previously was only available on VHS tape.  It has an alternate ending which is good to see.  The two protagonists: Lee Marvin and Toshiro Mifune start as enemies and discover that they need each other for survival.  The similarity to Robinson Crusoe is striking, except they both are on equal footing.  These two men are two of the greatest movie actors of all time.  It is a great pleasure to see them together.  There are very few copies for collectors out there so, get this one while you can.