The movie will reportedly see Stallone’s iconic character tackling a Mexican drug cartel, with the town of Varna on the Black Sea coast standing in for a story setting south of the US border, according to Film New Europe.
Stallone starred in the first Rambo movie – entitled First Blood – back in 1982 and the most recent film in the franchise, which Stallone also directed, was released in 2008.
The actor has worked in Bulgaria before, having shot two Expendables movies in the country.
Nu Boyana Studios is owned by Nu-Image and Millennium Films, and is a popular European production hub. The facility has recently hosted Neil Marshall’s upcoming Hellboy, military thriller Hunter Killer and The Hitman’s Bodyguard.
See KFTV’s production guide for more on filming in Bulgaria.