Most of this film is just another '70's disaster movie with a bunch of over the hill famous actors trying for one last time to revive their careers. The refinery explosion was incredible and very realistic, but the rest of the fire scenes are clearly process shots. The version I just watched is the MST3K episode from the KTMA season. The guys seemed to have a little trouble making jokes during the fire scenes, probably because of all the dead people and burning bodies. There is one scene though, in the hospital, where the doctor is walking down a hall full of burn victims and he lifts up the sheet covering one guy on a stretcher, and servo says "Oh, yuck thats gross", possibly the funniest line in the whole movie.
If your looking for this episode on DVD try mst3kvideos.com
If your looking for this episode on DVD try mst3kvideos.com