Villains!

[The Spectacular Spider-Nerd]

Every great movie has a great villain or rival.  Examples include Joker in Dark Knight, Vader in Star Wars- Return of the Jedi, Lotso in Toy Story 3, Mal in Inception, Hannibal Lector in Silence of the Lambs. World's Finest needs to have a villain or one hero as the others rival. Personally, Joker and Lex Luthor should be the villains in this movie. The World's Finest Villians with the World's Finest Heroes would lead to great character moments, amazing action scenes, and Billions of dollars for Warner Brothers. It also makes sense story-wise. Joker goes to Lex Luthor saying that he will kill Superman for money and to send a message that nobody is unbreakable. Batman goes to Metropolis to get Joker and takes advantage of investigating the Man of Steel, which would later set up their team-up, Justice League, and future ramifications in the future. Who do you want in World's Finest (or whatever name it is going to be called).     

[Mercy]

I'd go with Lex and Joker. It would balance out the epicness of having Bats and Supe team up to have their two arch-rivals team up as well. Plus it would be hilarious watching them try to screw each other over. No honor among those thieves, that's for sure!

[The Spectacular Spider-Nerd]

Definitely. Luthor would be supplying Joker and be in the background or even in his powersuit. Mark Strong, Billy Zane, or Bryan Cranston would be great Luthors and Chirstopher Eclleston could be a great Joker. i19.photobucket.com/albums/b199/pieeye/christopherecclestnrealjoke.jpg Here is a nice manip for Eccleston as Joker.

[thehaggishunter]

looking forward to the batman,superman film. why does everyone think they will fight in their first story together? i think i read it will be something along the same lines as the dark knight returns but cant they build a relationship first and then have a wee scrap in another film. it would be more emotional and rewarding.
for villians i would go for lex luthor, but for bats i just dont know. but i do want him to be more agile and comic book like and think affleck will do a fine job, a lot of people are having trouble seeing past bale.