Tremors 3: Back To Perfection

Legendary monster-killer Burt Gummer (Michael Gross) has returned to Perfection, Nev. , scene of the original attacks by the worm creatures with razor teeth known as graboids. Sure enough, the creatures attack again, only now they're split into graboids, shriekers and a new mutation known as ass-blasters, which are propelled into flight by combustible flatulence. It's up to Burt, Jack Sawyer (Matthew Seth Wilson) and other locals to save their town from destruction.