Fan Casting The Caped Crusader Returns

Second film in a Batman cinematic universe. Basically a what if of if DC had to sell their assets in the 90s like Marvel did, and I somehow ended up with the rights to characters related to Batman, Green Arrow, Blue Beetle, ARGUS, and a few specific characters like King Shark, Lex Luthor, Captain Boomerang, and the Suicide Squad name. Actual story synopsis for THIS film: After training Dick Grayson to become Robin for a year, Bruce has to deal with a new villain called “The Riddler,” who has teamed up with a notorious mob boss called “The Penguin” in order to take them down.