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Whoops, I was thinking about this.
Haven't seen it. Found a French trailer for it at http://www.dailymotion.com/video/x8qwxu_ironmaster-1983-umberto-lenzi-movie_shortfilms
I'm pretty sure I saw this years ago on VHS. It was actually about cavemen and there was nary a battleaxe in the movie, but no worse than many Italian or Phillipine sword & sandal type movies (which is damning it with faint praise I guess). I think one tribe skips copper and bronze work and goes right to iron weapons, creating an imbalance among the troglodytes.The IMdB review I just looked at make me wonder if it was better than I remember?