Rodents of Unusual Size is a 2017 documentary film funded by ITVS and directed by the team of Quinn Costello, Chris Metzler and Jeff Springer about giant invasive swamp rats, nutria, threatening coastal Louisiana.

[2] Louisiana residents south of New Orleans have faced many an environmental threat, from oil spills to devastating hurricanes, but a growing problem are an invasive species known as nutria or colloquially called swamp rats in the region.

This invasive species from South America is accelerating erosion of the state's coastal wetlands, already one of the largest disappearing landmasses in the world.

[3] The film covers the people (trappers, chefs, fashion designers, exotic pet enthusiasts) who have lived in the area for generations and are fighting back in creative ways.

The website's consensus reads: "Rodents of Unusual Size approaches a variety of timely and thought-provoking subjects from fresh angles—and a lot of surprisingly large creatures in the bargain.