Rocky Balboa is a Philadelphia club fighter who seems to be going nowhere. But when a stroke of fate puts him in the ring with a world heavyweight champion, Rocky knows that it's his one shot at the big time — a once-in-a-lifetime opportunity to go the distance and come out a winner!

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.

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