Expelled: No Intelligence Allowed is a 2008 documentary film, directed by Nathan Frankowski and hosted by Ben Stein. The film contends that the mainstream science establishment suppresses academics who believe they see evidence of intelligent design in nature and who criticize evidence supporting Darwinian evolution and the modern evolutionary synthesis as a mainstream conspiracy to keep God out of science laboratories and classrooms. The scientific theory of evolution is portrayed by the film as contributing to fascism, the Nazi Holocaust, communism, atheism, and eugenics. The film portrays intelligent design as motivated by science, rather than religion, though it does not give a detailed definition of the phrase or attempt to explain it on a scientific level. Other than briefly addressing issues of irreducible complexity, Expelled examines it as a political issue.

Expelled opened in 1,052 theaters, more than any other documentary before it, and grossed over $2,900,000 in its first weekend. It earned $7.7 million, making it the 13th-highest-grossing documentary film in the United States (statistics include 1982–present, and are not adjusted for inflation). In July, the movie was re-released allowing groups of 300 to book private screenings in theaters.

The general media response to the film has been largely unfavorable. It received an 8% meta-score from Rotten Tomatoes (later improved to 10% overall) where the film was summarized thus: "Full of patronizing, poorly structured arguments, Expelled is a cynical political stunt in the guise of a documentary." Multiple reviews, including those of USA Today and Scientific American, have described the film as propaganda. The Chicago Tribune's rating was "1 star (poor)", while The New York Times described it as "a conspiracy-theory rant masquerading as investigative inquiry" and "an unprincipled propaganda piece that insults believers and nonbelievers alike." Christianity Today gave the film a positive review.

The American Association for the Advancement of Science describes the film as dishonest and divisive propaganda, aimed at introducing religious ideas into public school science classrooms. The film has been used in private screenings to legislators as part of the Discovery Institute intelligent design campaign for Academic Freedom bills.