Naturally, since the movie is more than two years away and Warner Bros has been very secretive about anything to do with the look of the DC Comic heroes, Snyder wasn't able to share too much, but he did talk up his initial reasons for deciding to add Batman into the mix.
"After Man Of Steel finished and we started talking about what would be in the next movie, I started subtly mentioning that it would be cool if he faced Batman. In the first meeting, it was like, 'Maybe Batman?' Maybe at the end of the second movie, some Kryptonite gets delivered to Bruce Wayne's house or something. Like in a cryptic way, that's the first time we see him," he says.
"But then, once you say it out loud, right? You're in a story meeting talking about, like, who should Superman fight if he fought this giant alien threat Zod who was basically his equal physically, from his planet, fighting on our turf. You know, who to fight next? But I'm not going to say at all that when I took the job to do Man Of Steel that I did it in a subversive way to get to Batman. I really believe that only after contemplating who could face Superman did Batman come into the picture."
Snyder, who has images of the costumes on his production office walls is eager to share his enthusiasm for having seen just the outfits brought together for the first time.
"The thing also that's really fascinating for me is that, even just in the tests we've been doing, the costumes, right? You basically have Batman and Superman – and this is without Ben and Henry in the costumes, but just like the stand-ins, just testing to see what the costumes look like. And you have them standing there and they're standing in the same shot – and then we have Wonder Woman, you know, all three of them in the same shot. Even just for a test, you really have to go, 'Wow, that's crazy!' Not only is it the first time that I'm seeing them, it's the first time they've ever existed together on screen in a movie. Even just Batman and Superman standing next to each other... It's kind of epic. It's crazy. But it's fun."
Don't go expecting the director to leak snaps from his iPhone on Twitter just yet, though. "The one nice thing is that, the schedule is designed carefully so that I don't know that that'll be a problem – but who knows, these cats are pretty good at getting the drop on us with these photos. But, when we finally do show it, it's gonna be real fun. And it's true, you gotta make sure – you're gonna want the real shot..."
With Gal Gadot (Fast & Furious 6), Amy Adams (American Hustle), Jesse Eisenberg (The Social Network), Laurence Fishburne (Contagion), Jeremy Irons (Beautiful Creatures), and the more recently announced Callan Mulvey (Zero Dark Thirty), Holly Hunter (Paradise) and Tao Okamoto (The Wolverine) all lined up to co-star, the film will be out in the UK on 29 April 2016 before hitting US screens later on 6 May 2016.