There were a number of stages involved in the making of the film, beginning with a rough animation process of ideas drawn on Post-it notes. The writers drew, working from rough outlines rather than scripts (which made the humor more visual than verbal). The storyboard artists, including Sherm Cohen, then illustrated ideas conceived by the writers. In the series Tom Yasumi and Andrew Overtoom do the animatics, but director Hillenburg and writer Derek Drymon did the animatics for the film. Yasumi and Overtoom were the film's animation-timing directors, concentrating on the sheets. "The SpongeBob SquarePants Movie" was animated at Rough Draft Studios in South Korea. The animators worked semi-digitally; pencil-drawn poses would be composited into layouts in Photoshop.