The Informant! DVD Movie

Rated R. Used to be a rental at blockbuster but DVD is still in great condition.
Mark Whitacre has a promising career with agricultural corporation Archer Daniels Midland, but the espionage fanatic decides to turn his life on its head by bringing them down from the inside. After informing the FBI that ADM are involved in a price-fixing conspiracy, Whitacre agrees to wear a wire and investigate his employers on their behalf.