Citizen Duane

Citizen Duane is a 2006 Canadian comedy film.

Duane has a longstanding resentment against Milton because she approved his fathers shooting by the police. His father had become violent while trying, without success, to warn Milton and the townsfolk that the towns namesake ridge would soon collapse due to heavy mining and insect tunneling.With the support of his brother Maurie Devon Bostick Duane tries, and fails, to win the election. After withdrawing from the race he and his uncle Donal Logue drive back to Duanes house from Ridgeburgs ridge. The camera pans down underground, showing an insect removing a rock from a tunnel under the ridge. This triggers a landslide, leading to the implosion of the ridge, which Duane and his uncle see from the back of their truck. The next morning, prior to the election results being announced, it is revealed Mayor Milton has had a heart attack after seeing the ridge collapse, presumably since she realized that Duanes father was right all along. ........

Source: Wikipedia