Damon bulked up with junk food for his role in The Informant and is scarcely recognizable playing a pudgy, bespectacled young executive in Steven Soderbergh's dark comedy, reports parade.com.
In the film, Damon plays real-life whistleblower Mark Whitacre, the man who helped the FBI expose a multi-national price-fixing conspiracy, and he says he could hardly believe the story himself.
"Reading the book and the script, my jaw was on the floor. You can't make these things up. It was a whistleblower story unlike any I'd ever heard. This guy was doing these incredibly courageous things, wearing a wire and gathering all of this information about price fixing. At the same time he was embezzling money from the company he was exposing and the FBI had no idea."
"The funny part is that he was a brilliant executive on the rise. But he was battling his own kind of mental health issues. He couldn't help himself. Even predating this whole story, he was telling people that he was adopted by a family after his parents had died in an automobile accident and none of it was true."
"Long before our current financial crisis," Damon adds, "Steven made the decision to make it a dark comedy ... Now, you watch the news every night and see stories like this and the last thing you want to do is go see a movie that takes itself too seriously about the same stuff."
"Since his face was rounder, I had little things stuck in my gums to push my cheeks out and I had a fake moustache. Then, I wore a toupee because he covered up the fact that he was bald with a hairpiece. Funny enough, nobody ever knew until he was booked by the FBI and they took his photo without it. I also gained about 30 pounds. I was eating a lot of burgers with Doritos for dessert. I hate to admit it, but I was in heaven."