Now that Venom for the biggest October opening ever.

It is of course nothing new for a movie related to the Batman universe to enjoy huge box office numbers, but Joker is different because it doesn't actually feature the Caped Crusader (DC Comics. But it's safe to say the gamble paid off big time, as the film went over big with critics and even bigger with audiences.

Related: The Joker: 10 Unanswered Questions A Sequel Must Answer

Now that Joker has become a huge hit, can fans expect a wave of Batman villain solo movies in the gritty style of Phillips' film? Probably not. But that didn't stop Seinfeld's George Costanza actor Alexander from proposing his own movie built around another bad guy from the Batman universe: Egghead. See Alexander's Twitter post in the space below:

What makes Batman & Robin.

Though Egghead can't really be regarded as one of the main Batman villains, he clearly has a lot of fans, chief among them Alexander. Unfortunately, the chances of Egghead getting his own movie seem very slim, even with Joker seemingly opening the door for Batman villains to receive their own showcases. As of now, the notion of an Egghead solo movie sounds more like a crazy George Costanza idea than anything that could actually happen in reality. That being said, if there ever is an Egghead movie, or if Egghead just makes an appearance in a Batman film, Alexander is clearly the man to play him (perhaps Egghead could become a marine biologist).

More: DC's Joker Movie Hints At Another Batman Villain

Source: Jason Alexander/Twitter