Rodents of Unusual Size

As a documentary, Rodents of Usual Size makes good use of animation illustrating how Louisiana got itself into this environmental disaster. The filmmakers interview a wide variety of citizens who come at the problem from their own unique perspective. They also capture some of the most once beautiful and now devastating images of Louisiana itself.

If the carnage of “nutria skinning contests” doesn’t turn you off, the sheer waste just might.

A bit icky yet full of charm, the engaging documentary Rodents of Unusual Size introduces us to the nutria, a furry antihero that’s a cross between a huge rat and a beaver — and that has been damaging Louisiana’s delicate wetlands for decades. The film serves as both an environmental cautionary tale for other states (including California) and an interesting slice of Cajun life.

Rodents of Unusual Size proves enjoyably quirky and informative.

Director-producers Quinn Costello, Chris Metzler and Jeff Springer, along with narrator Wendell Pierce (of TV’s “Treme”) keep the tone light, but the underlying message is both timely and worth remembering: You can mess with Mother Nature, but she will mess back.

While the film is ostensibly about nutria, the real stars are the locals who help tell the story -- and who, by displaying their grit, their smiles, their dialect, their pride -- transform the film as much into a South Louisiana ethnography as an environmental call to arms.

The film’s initial non-judgmental perspective eventually sounds more like a public service announcement for Louisiana’s nutria control program.