NEXT WEEK, a documentary about the 1976 movie, 'Rocky' ---- narrated by Sylvester Stallone --- will be released on-demand.

According to Indiewire, viewers will hear new stories and see footage that has never been available to the public, including: home videos, rehearsal footage and behind-the-scenes footage.

40 Years of ‘Rocky:’ The Birth of a Classic was originally planned to air on Epix last winter, but will now premiere on-demand on Tuesday, June 9th.

Credit: Cinema 83 Documentary Films via YouTube