...in Harleen Quinzel in the trailer. If we follow the timeline in this theory, it doesn't add up. How can pre-villain Harley be tortured by Jason Todd Joker if Jason Todd didn't even "die" yet? We know that in the film, Harley feels guilty over the death of Jason Todd, which is why her and Joker seem estranged in the trailer. So we know she was present for his death. So not only is this "fan" theory totally obscene when it comes to logic, but also lore. They wouldn't mess with the Joker AND Jason Todd's backstory, it'd be a trainwreck of a film. I can't see how any Batman fan can possibly think this theory is any good, honestly. It just spits all over the lore.