Shrek is a 2001 American computer-animated fantasy-comedy film produced by PDI/DreamWorks, released by DreamWorks Pictures, directed by Andrew Adamson and Vicky Jenson, featuring the voices of Mike Myers, Eddie Murphy, Cameron Diaz, and John Lithgow.
Shrek is loosely based on William Steig’s 1990 fairy tale picture book Shrek!, and somewhat serves as a parody film, targeting other films adapted from numerous children’s fantasies (mainly animated Disney films). The rights to the books were originally bought by Steven Spielberg in 1991, before the founding of DreamWorks, when he thought about making a traditionally animated film based on the book. However, John H. Williams convinced him to bring the film to DreamWorks in 1994, the time the studio was founded, and the film was put quickly into active development by Jeffrey Katzenberg after the rights were bought by the studio in 1995.