Whereas the symbiote suit worn in the comics by Spider-Man was a plain black affair with a large white spider on the front and back, the design was changed for the film to become a black version of Spider-Man's traditional costume, complete with webbing motif. As a consequence of this, the suit Topher Grace wore as Venom also bore the webbing motif; as producer Grant Curtis noted, "it's the Spider-Man suit, but twisted and mangled in its own right." Additionally, the motif gave a sense of life to the symbiote, giving it the appearance of gripping onto the character's body. When animating the symbiote, Raimi did not want it to resemble a spider or an octopus, and to give it a sense of character. The CG model is made of many separate strands. When animating Venom himself, animators observed footage of big cats such as lions and cheetahs for the character's agile movements.