Old wine in new bottle. That's the appropriate way to describe Rocky. Since time immemorial, we've watched heroes going on a killing spree to avenge the murder of their beloved. Fighting for the rights. Revolting against injustice. That's the essence of Rocky. Nothing has changed, only the faces have.
The problem with Rocky is that it doesn't even try to step out of the set rules of cinema. It's a typical masala film with loads of songs, generous doses of action scenes, a good dose of London... except an innovative plotline. In fact, the viewer can actually predict the story fifteen minutes into the film.