John Alan Lasseter is an American animator, filmmaker and former chief creative officer of Walt Disney Animation Studios, Pixar and the defunct Disneytoon Studios. He was also the Principal Creative Advisor for Walt Disney Imagineering.Lasseter began his career as an animator with The Walt Disney Company. After being fired from Disney for promoting computer animation, he joined Lucasfilm, where he worked on the then-groundbreaking use of CGI animation. The Graphics Group of the Computer Division of Lucasfilm was sold to Steve Jobs and became Pixar in 1986. Lasseter oversaw all of Pixar's films and associated projects as executive producer. In addition, he directed Toy Story , A Bug's Life , Toy Story 2 , Cars , and Cars 2 .