TMDb/John Rambo Movie Noah Centineo stars as young Rambo in a Vietnam War prequel. Sylvester Stallone executive produces the new action film. March 15, 2026 AceShowbiz - John Rambo, one of Sylvester Stallone's most legendary characters, is set to return to the big screen with an exciting new prequel. This time, the story will explore Rambo's early years as a Green Beret during the Vietnam War. However, in a departure from previous films, the younger version of Rambo will be portrayed by Noah Centineo, known for his role in The Recruit.