Sylvester Stallone writes the screenplay for Rocky in just three days, inspired by a boxing match between Muhammad Ali and Chuck Wepner.
Despite offers to sell the script, Stallone insists on starring as Rocky Balboa, leading to some difficulties in securing funding and distribution.
Rocky premieres in New York City and soon gains popularity for its underdog story and performances.
Rocky wins three Academy Awards including Best Picture, solidifying its place as a classic American sports film.