A prequel to Rambo that covers the characters' time during the Vietnam War is on the way, but it needs to avoid the same ...

Sisu’ director Jalmari Helander is aboard to handle the new film, which would explore Rambo’s Vietnam stint. Sylvester ...

Jalmari Helander, director of "Sisu," is attached to direct "John Rambo," which will show Rambo's adventures in Vietnam.