Back in the day, when directors like Richard Donner and Tim Burton were calling the shots, comic book movies weren't so reliant on CGI. These superhero cinema events felt a bit more grounded, like they were almost plausible, because green-screen technology wasn't the height of filmmaking fashion.
Now, it's harder to relate to superhero films, since they're stuffed to bursting point with computer-generated characters and bombastic special effects sequences. It's tough to find an emotional core to cling to when there's so much technical wizardry going on.
Zack Snyder's Batman V Superman is the perfect example of how much things have changed: the villainous Doomsday was made entirely on computers, most of the explosions were fake, and even the origin of Batman hinged on an effects shot. (Those bats in the cave at the start weren't real, sadly.)
Thanks to a visual effects reel posted by Cruel Films on Vimeo, the ratio of practical filmmaking to computer effects in Snyder's superhero slugfest has now been made clear. There is certainly more computerised stuff than the average viewer would suspect, including backgrounds, stunts, destruction, costume details and even characters' movements.