The film predates Ted Kotcheff's First Blood, the film which introduced audiences to the John Rambo of David Morrell by seven years. Tomas Milian happened to read David Morrell's novel while flying from the U.S. to Rome.
The film predates Ted Kotcheff's First Blood, which introduced viewers to the character John Rambo created by David Morrell seven years prior. Tomas Milian coincidentally read David Morrell's novel during a flight from the U.S. to Rome.