The problem, I think, comes back to Mr. Stallone. Throughout the movie we are asked to believe that his Rocky is compassionate, interesting, even heroic, though the character we see is simply an unconvincing actor imitating a lug.

Vincent Canby

The New York Times

The story is achingly familiar, and though Stallone has a certain power, he is certainly not the subtlest actor to crawl out from under Marlon's overcoat. But the picture goes most wrong in the conceit it employs to lift Rocky out of the clubs and into the big arena for his title challenge.

I wanted to like it more than I did, but it'll do.

Dave Kehr

Chicago Reader