Though he’s best known as the Hulk, Mark Ruffalo’s played everything from a Pulitzer Prize-winning journalist in Spotlight to dorky best friend-turned-regulation hottie Matt in 13 Going on 30. His latest film, Dark Waters, sees the acclaimed actor play an attorney primed to take on the shady dealings of one of the world’s largest chemical companies: DuPont. Was he really up to task? ELLE took the opportunity to test Ruffalo’s legal prowess, with a set of laws, outrageous and otherwise. Tune in to see if he knows the cold, hard facts.