Struggling as an actor for a number of years upon moving to New York City in 1969, Stallone found gradual work in films such as The Lords of Flatbush (1974). He achieved his greatest critical and commercial success starting in 1976 with his iconic role as boxer Rocky Balboa in the first film of the successful Rocky franchise, which he also wrote.[4] In 1977, he became the third actor in history to be nominated for two Academy Awards for Best Original Screenplay and Best Actor. He portrayed the PTSD-plagued soldier John Rambo in First Blood (1982), a role he would play across five Rambo films (1982–2019). From the mid-1980s to the late 1990s, Stallone would go on to become one of Hollywood’s highest-paid actors acting in action films such as Cobra (1986), Tango and Cash (1989), Cliffhanger (1993), Demolition Man (1993), and The Specialist (1994). He received a star on the Hollywood Walk of Fame in 1984.

Stallone continued his established roles in Rocky Balboa (2006) and Rambo (2008) before launching The Expendables film franchise (2010–present), in which he starred as the mercenary Barney Ross. In 2013, he starred in the successful film Escape Plan and appeared in its sequels. In 2015, he returned to Rocky again with Creed, in which a retired Rocky mentors former rival Apollo Creed’s son Donnie Creed. The film brought Stallone widespread praise and his first Golden Globe Award, as well as a third Academy Award nomination, having been first nominated for the same role 40 years prior. Since 2022, he has starred in the Paramount+ crime series Tulsa King.