How Movies Being Made on Instagram: "Scenes with Scooby-Doo look seamless, but they were filmed using stand-ins, motion reference, and empty space. Actors performed to eyelines, timing cues, and physical marks, imagining a character that was not present. This approach allowed genuine reactions while animators later matched Scooby’s movement, personality, and comedic rhythm carefully deliberately precisely. Behind the scenes, Scooby was created through full CGI, added months after filming. On set

Scooby-Doo (2002)