Tommy Wiseau, the auteur responsible for The Room, is doing his best to stretch his 15 minutes of fame with a whirlwind publicity push for the Blue-Bay release of The Disaster Artist. He's done funny videos for Screen Junkies, Vanity Fair, and Nerdist. Nerdist had him audition for the role of The Joker, and that seems to fall into his wheel well better than the other ridiculous scenarios he's been put into.
As others have pointed out, when he stops trying to act and is just himself, it makes a better Joker. The true derangement is quite genuine. -via reddit