Rocky is an amazing movie. It somehow retains its inspirational power after thirty years of cheap imitation attempts. This movie sidesteps the cliches it started because it's so much more than a sports movie or an underdog story, which is the only element the knock-offs and clones try to emulate. But Rocky also portrays a personal drama dealing with family troubles that manages to be uplifting without saccharine sentimentality. It is a hilarious and true-to-life foray into personalities and characters that the audience is rarely exposed to. Stylistically and thematically, it is a pretty dark movie throughout; the end is, however, a poignant and touching experience that will not be forgot.
Onto the negatives. I thought that pretty much every scene involving Apollo Creed was farcical and took away from the natural realism of the movie. Also, it started off a bit awkward and meandered for a while, but in the end it made its point perfectly.

IMDb link: http://imdb.com/title/tt0075148/