(Heidi Ewing and Rachel Grady): Documents a real-world experiment in Chicago where students were offered cash rewards for achieving better grades. Freakonomics (2010) - IMDb
The file you're referencing is a high-definition BluRay rip of the , which is an adaptation of the best-selling book by economist Steven D. Levitt and journalist Stephen J. Dubner.
The film is an anthology consisting of four main segments, each directed by a different prominent documentary filmmaker to explore the "hidden side" of human behavior through the lens of economic incentives: