Ali Inspiration
As well as starring as Rocky Balboa, Sylvester Stallone wrote the movie too!
After watching a Muhammad Ali fight, the actor was determined to create a boxing movie.
After 84 hours of writing, Sly had completed his first draft but it was very different to what ended up on the big screen.
Initially, Apollo Creed was Jamaican, Adrian Pennino was Jewish and Rocky lost his final fight and quit the sport altogether to open a pet store.