Reign of Fire (2002)

When a London tunnelling project uncovers an unearthly fire-breathing beast from centuries of slumber, all hell breaks loose. Twelve-year-old Quinn (Bale) sees his mother, one of the workers, die trying to escape this new terror. Twenty years later as a "fire chief", he tries to keep a group of refugees alive with fierce dragons dominating the air, burning the land, and feeding on the ash.