Eamonn M. McCormack/Getty Images for BFI
Additionally, the same report has reported that Jeremy Irons will get his butler duds on to play Alfred. That's about all that's known at this time.
Expect a lot of tweets starting out with the letters W, T, and F, but when you think about it, these casting strokes actually make an odd kind of sense. Eisenberg has cornered the market on brilliant, emotionally detached sociopaths -- whether it's Mark Zuckerberg in David Fincher's masterpiece "The Social Network" or his nebbish magician in last summer's sleeper hit "Now You See Me." As the genius Luthor, who seemingly always has some kind of real estate scheme in the works (at least in the movies), Eisenberg will join some pretty big name actors, considering Gene Hackman and Kevin Spacey have previously essayed the character.
Meanwhile, Irons as Bruce Wayne's trusty butler and confidant Alfred also makes sense, at least in the fact that they're both British.
"Batman vs. Superman," with Ben Affleck and Henry Cavill, will open Summer 2016.