Sylvester Stallone and John G. Avildsen narrate behind-the-scenes footage from the making of "Rocky" to mark the film's 40th anniversary.

A lifetime of taking shots has ended Rocky’s career, and a crooked accountant has left him broke. Inspired by the memory of his trainer, however, Rocky finds glory in training and takes on an up-and-coming boxer.

An uneducated collector for a Philadelphia loan shark is given a once-in-a-lifetime opportunity to fight against the world heavyweight boxing champion.