Oh no... who cares? : L: Public/Screenshot/Youtube — SonyPicturesEntertainment/R: Photo by Larry Busacca/Getty Images for The New York Times Citadel hedge fund billionaire Ken Griffin is so pissed off about his portrayal in the upcoming movie “Dumb Money” that he’s started a legal battle with Sony Pictures, according to a report published Monday. “Dumb Money” tells the true story of the GameStop meme stock eruption of 2021, which wreaked absolute havoc in the financial sector as millions of dollars fled the pockets of the uber-rich and went directly into the accounts of everyday folks.