The Informant!

What was Mark Whitacre thinking? A rising star at agri-industry giant Archer Daniels Midland (ADM), Mark suddenly turns whistleblower. Even as he exposes his company's multinational price-fixing conspiracy to the FBI, Mark envisions himself being hailed as a hero of the common man and handed a promotion. But before all that can happen, the FBI needs evidence, so Mark eagerly agrees to wear a wire and carry a hidden tape recorder in his briefcase, imagining himself as a kind of de facto secret agent. Unfortunately for the FBI, their lead witness has been less than honest about helping himself to the corporate coffers and it becomes almost impossible to decipher what is real and what is the product of Mark's active imagination.