There’s a whole world of dog-powered sports that goes far beyond mushing huskies in the Iditarod. Instead, imagine specially bred sprint dogs teamed with humans on foot, skis, bikes, sleds, carts and more. They can reach speeds close to 30 miles an hour.

Dog Power Movie is a new documentary screening at the Denver Film Festival on Wednesday and again on Sunday, Nov. 13.

Colorado Matters host Nathan Heffel speaks with filmmaker and dog-powered competitor Kale Casey of Paonia.

Dog Power Movie Trailer