Thanks to the progression of computer-aided digital effects, there's essentially nothing that you can't create in the movies today. However, while one might assume that such effects were used potentially excessively in order to create the Nazi zombie's of Overlord, it turns out that whenever possible, director Julius Avery used practical effects and prosthetics. He, along with actor Pilou Asbaek spoke to CinemaBlend's own Eric Eisenberg recently and spoke about his "selfish" decision to use more practical effects, because it made his job easier capturing performances while also keeping the movie grounded, to a degree. According to Avery...
While the premise of Overlord is certainly fantastical, iIt's clear that Julies Avery wanted to make the movie feel as realistic as possible. As impressive as most CGI is, often it still looks animated to a degree and not like it exists in the same world as reality. While that's usually fine for your average comic book superhero movie that is meant to look larger than life, it's not what the director wanted here.
For many directors, digital effects might seem like the more selfish option. It's all done in post-production meaning that you don't have to wait for actors to spend hours in makeup chairs in order to look the way you need. However, Julius Avery says he really wanted to be sure that the actors were behind the performances that were given, even if those performances were behind significant prosthetics. It's easier to get a performance from somebody who's supposed to be playing a monster when they actually look like a monster.
Pilou Asbaek, who plays one of those roles that required hours in the makeup chain only supported Julius Avery's statements. While he admitted getting the prosthetics done was a pain, he felt it was the effort once filming began.
While it's understandable that an actor might feel more "in character" themselves thanks to prosthetics, the way that it impacts the other actors can't be ignored. When you're using digital effects an actor has to imagine whatever it is they're supposed to be seeing but if they can actually see it, of course, it's going to improve things for everybody involved.
Overlord is in theaters now. Check out the full conversation about the value of prosthetics in the video below.