While developing Carnage for Venom: Let There Be Carnage, director Andy Serkis wanted to ensure that his movements were distinct from those of Venom.
"Venom is... pretty straightforward in a way. He's like a quarterback. He's very grounded, very physically sort of heavy, and like a quarterback where brute force is very much his thing," Serkis told IGN. "Whereas Carnage, in the same way that Cletus is manipulative psychologically and physically, he can take your energy and completely shift it for you. So we wanted the whole movement style to be very idiosyncratic and off-kilter and strange, and you just can't pin him down. It would be like trying to have a fight with an octopus basically."
To create Carnage's "off-kilter and strange" motions, Serkis and his team worked with a group of dancers and actors on a performance-capture stage to test and build out Carnage's movements. "It was a really exciting period of building the movie actually was Carnage movement tests. That was a really exciting part of it," he added.