Firestorm was originally written as a vehicle for Sylvester Stallone, however when the production company Savoy Pictures went bankrupt the screenplay was bought by Twentieth Fox and the scope of the movie reduced to suit a lower budget. It’s broadly similar to Cliffhanger in so far as the lead character is a specialist in a certain field who runs afoul of criminals in a perilous environment. Whereas Cliffhanger is set in the Rocky Mountains, Firestorm takes place in the forests of Northern Wyoming. After the script was revised four times, the finished screenplay was given a final “polish” by Graham Yost who has considerable experience with the action movie genre. As stallone was no longer associated with the project and the production had been repurposed to be less extravagant, the movie was assigned to former NFL star Howie Long. Long had already appeared in the John Woo movie Broken Arrow (1996) and the Firestorm was seen as a means to give him a star vehicle.