Caveman movie: 70s or 80s

Movies
1

Points I remember:

  1. Drama with no narration,
  2. Two cavemen groups fight,
  3. Caveman discovers that animal bone is hard after eating,
  4. Caveman uses bone as weapon and fights off other caveman group.

What’s the name?

3

I have not seen this, so this is just a guess, maybe?:

3 Likes
2
1 Like