Keep an eye open for this one.
My friend Russell worked on this film doing visual special effect. The difference between visual special effects and special effect is visual effects are added in post production. Anything that is later done on computer or with the film. I sat behind him for a few hours while he worked on this. It is amazing how much effect is now being added with post production computer work. The one explosion I was an extra next to involved only compressed air and cork debris. The fireball was added later.