Behind-the-scenes gossip around Joker 2 reveals that even the first film was supposed to end with a nod to The Dark Knight. The idea seems more like a bug than a feature.

Here's every actor who has played the Joker on screen, from Heath Ledger's celebrated turn in 'The Dark Knight' to Joaquin Phoenix's performances as Arthur Fleck.

The origin of the Joker's scars in The Dark Knight has remained a mystery since the 2008 movie, but Joker: Folie Deux might have teased an answer.