Wouldn't it have been awesome if the premise of the movie was that Rocky heard about the new sport sweeping the country called MMA. Then he sees on sportscenter that they wonder how rocky would do in a MMA fight. He challenges the top MMA fighter in the world Fedor, and gets annihilated. Of course the whole point of the movie would be to show how much better MMA is than boxing.
What do you think it should have been about?