Expelled: No Intelligence Allowed is a controversial documentary film which claims that educators and scientists are being persecuted for their belief that there is evidence of “design” in nature. It claims that “Big Science" allows no dissent from the scientific theory of evolution, and blames the theory for a range of alleged societal ills. Starring Ben Stein, the film is due to be released in April, 2008.

The film promotes intelligent design — the idea that there is evidence of a supernatural intelligence in biological processes, a form of creationism. The Discovery Institute which is at the center of promoting intelligent design, claims that it is a serious scientific research approach, and not creationism. However, Stein claims that the film presents evidence that scientists do not have the freedom to work within the framework of believing there is a God. What a reviewer describes as four or five examples of ordinary academic back-biting are presented in the film. It alleges that they are evidence of widespread persecution of educators and scientists who promote intelligent design, and of a conspiracy to keep God out of the nation’s laboratories and classrooms. Promotion of religion in American public schools violates the Establishment Clause of the First Amendment to the U.S. Constitution, and in the 2005 Kitzmiller v. Dover Area School District trial a United States federal court ruled that intelligent design is a religious view and not science, and so cannot be presented in science classes.

The film blames the theory of evolution for a range of things the film portrays as societal ills, from Communism to Planned Parenthood, while failing to define or explain either evolution or its supposed alternative, intelligent design. The evidence that this scientific theory is responsible for social problems does not exist and within the scientific community the theory of evolution is accepted by scientific consensus and intelligent design is not considered to be valid science, but is viewed as creationism.

Although not yet released, the film is being promoted by Christian media and by organizations affiliated with the Discovery Institute, the hub and source of the intelligent design movement. As part of the Discovery Institute intelligent design campaigns claiming discrimination one of the institute's websites, Intelligent Design the Future, makes the claim that Expelled "reveals the stark truth: Darwinists have been conspiring to keep design out of classrooms, out of journals, and out of public discourse." However, the Discovery Institute has been critical of some of the statements made in promotion of the film, such as American television personality and social commentator Bill O'Reilly equating intelligent design with creationism