A “Rocky” documentary titled 40 Years Of Rocky: The Birth Of A Classic, will debut this month. Narrated by Sylvester Stallone, the behind-the scenes film will delve into Stallone’s experiences working on the original “Rocky.” The documentary is written and produced by Derek Wayne Johnson, and in a statement he said the film will “give audiences an intimate, and at times, emotional experience.” “Rocky” was released in 1976 and became an instant box office sensation. It won three Academy Awards, including Best Picture, and spawned seven sequels. 40 Years of Rocky: The Birth of a Classic will be released digitally on iTunes/AppleTV and Amazon on June 9. You can watch the trailer here.