Topix Underground

I watched this movie yesterday called Iceman. I saw it a long time ago.  I missed the beginning but basically it's these scientists in the Arctic somewhere find this Neanderthal preserved in the ice and they are able to revive him after 40,000 years and put him in this specially built habitat.  But it ends with them having malevolent intent and Timothy Hutton escapes with the Iceman and helps him commit ritual suicide - and that's somehow a happy ending.
There was a little more to it than that. That's the short version.