"Zack’s going for pretty much everything in-camera as much as he can. I mean, the reason to think about Superman in CGI, you don’t need him full CGI as a character, because he’s basically a full person. But you just don’t want the flying scenes to look like he’s on a wire. So [the question is] how do you use CG to make that happen, and that’s still kind of being played with right now." On the flying scenes and how there is still a lot to be done with practical effects, he said: "I think it could still be refined. Because there’s always room for interpretation there. The idea of a human flying, because you can’t actually tell how they’re powering themselves, leaves it open to trying different things." Even though he didn't reveal anything about the flying sequences, The Playlist added: "While Letteri didn’t reveal exactly how they were depicting Superman’s flying sequences, he said that they were primarily focusing on what was in the script and what Snyder wanted rather than referring to the decades upon decades of comic book images they could potentially draw upon as a reference point." About doing these kind of scenes, Letteri also said: "That’s completely story-driven. That’s going to depend on your shot and your composition, and the performance, and in that case, that’s kind of Zack’s call – what is he looking for there?"
