Stallone collaborated with the same team for the 2008 Rambo, with the star also directing.

Written by Stallone, Rambo 5 will go into preproduction in late spring 2010. The producers are Avi Lerner, Kevin King Templeton and John Thompson. Some Nu Boyana's backlot sets are to be redesigned for the shoot. Locations around Sofia and the Vitosha mountain will double for Arizona.

While Stallone previously stated that he would be looking for Bulgarian actors, there is no official confirmation on any local casting. Strong reliance on local stunt crews is expected for the demanding action scenes.

The increasing internet Rambo mania is quickly involving a large number of young Bulgarian fans, whose choice discussion topic is "Bulgaria as Ramboland".