He received two Oscars for his work as animation director for "Who Put Roger Rabbit?" From 1988 and was also the one who drew the intro to the "Rosa Pantern" films with Peter Sellers in the 1970s.

Williams was born in Canada, but moved to England in the 1950s. His first animated film "The Little Island" from 1958 gave him the British prize Bafta for best animated film.

Wanted to work for Disney

He wanted to work for Disney and in 1988, his dream came true when he got to lead the work on the animated sequences in the "Roger Rabbit" movie. The film's currently advanced animation technology underlies the technology used in today's computer-generated animations.

His most ambitious project, "The Thief and the Shoemaker," was inspired by the Middle Eastern saga culture. Williams tried to get it funded for 30 years, but it was considered to be able to compete with Disney's "Aladdin" and Warner Bros had it completely redone, to Williams's dismay. He never talked about the movie, which was released in several versions during the 1990s, in later interviews.

In 2006, a new version based on William's original script was released.