Purpose realized In order to be fair, I first have a disclaimer: I am a literal Bible believing, literal 7-day, young earth Creationist. Of course that made the material in the movie easier for me to accept without having a reason to reject the movie out of hand. If the tables were reversed, I would probably be less inclined to see the movie, and if I did see it, I would probably not be very objective. So I understand some of the anger and response. When you are convinced or "converted" to a mindset, it is very difficult to be objective about ideas that challenge that paradigm.
But keep in mind even in this case, I would have some difficulties with some of the ID folks, especially the ones who are apologists for a "God directed" evolutionary process or the "aliens seeded us" ideas. So I wasn't necessarily thrilled with all of the intellectual contents of the movie. I actually thought it would be more about the arguments on each side of the issue when it was really intended to show the dangers of suppressing valid theories, ideas, and discourse in a classroom and/or teaching setting. Keeping that in mind, I believe the movie did exactly what it was intended to do, not what I was expecting it to do, and did it well.
Remember, this is a movie review! In this case, the movie is a documentary, but, still, it is a movie. Whether or not you agree with the purpose or obvious intention, I thought it did a good job of putting forth its premise and eventually coming to its conclusion in an entertaining fashion. I enjoyed the music, the use of historic footage, and I thought the emotions that it stirred made it effective as well.
I also thought that Ben Stein did a really good job at the interviews by remaining, for the most part, objective and challenging people on both sides of the issues on their own agendas. Ben Stein also allowed those individuals to follow their own line of thinking in their answers, culminating with Richard Dawkins "hanging himself" with his own words by allowing the possibility that life started as an alien seeding. Of course, I thoroughly enjoyed watching him squirm in that moment in the film considering my own prejudices in this matter, but I thought Ben also acted fairly by challenging the Creation Institute folks as well and their own religious agendas. It was also impressive and effective to me that he started with a Darwinian biologist that has been ostracized not because of what he believes but because he allowed the discussion of the alternative in his publication at the Smithsonian.
Of course one of the objectives of this film was to show what could happen if this situation of the suppression of ideas remains unchecked in academia. The idea that Darwinian theory helped the cause of both fascism and communism should not be in question. I was taught in college (many moons ago, as my grandfather would say) that "social Darwinism" was a major contributor to the philosophies of the Nazis and the dictatorial powers of the Soviet Union and other communist and fascist countries. In those cases, we see the extremes of that argument not only in the elimination (murdering) of those that are the "weakest" in society but also in the elimination of those that oppose the "party line." But extremes are what we are talking about here. Ben Stein is not saying that we will become a fascist nation, but he is merely pointing to one of the historic results of this line of evolutionary thinking. Most Germans would not have believed themselves capable of participating in a regime like Hitler's 20 years before many of them did just that.
When an academic line of thought that is not proved by evidence becomes so dominant that any challenging theory is not only dismissed but banned from discussion, you get into the danger zone of following the same paths as the Nazis or other radical organizations. We don't do this in most other areas of academic study. For example, we live in the United States under a democratic republic unlike most others in the world. However, all government and political science study courses that I know of routinely discuss the attributes and the pros and cons of all other forms of government including dictatorships, monarchies, communism, and parliamentary democracy, most of which are unacceptable alternatives to us. It is an open discussion examining the results and histories of all of these types of governments. Even mathematics and physics, academic areas generally ruled by absolutes based on proved, accepted and sometimes pre-supposed facts, have areas of discipline based on imaginary numbers, inductive reasoning, string theory, quantum theories, black holes, and other theoretically based ideas, all of which are unprovable at our current state of understanding.
There is evidence that supports the ideas behind Darwin's belief system concerning the origin of species, but the conclusions (knowing a little bit about Darwin himself) are based on the beginning supposition that there is no creator. The same is true of ID or Creationism; there are suppositions in those thoughts as well. Any logical argument must begin with accepted truths. In other words, if "a=b" and "a=c" then the truth of "b=c" can only be accepted if we know for certain the value of "a," the point where we began. For both Darwinian evolution and for creationism the value of "a" is actually assumed and unable to be known for certain at this point of our knowledge. The point to Ben Stein's thought process and the movie is just this: let's keep the discussion and debate open at least until the truth of "a" can be determined for sure. It's right and fair for everyone!