The Big Bang: Things You Didn't Know |Space Science Documentary
Video Channel: IMAX HD
The big bang theory may not be as contentious as, say, the evolution of man — partially because it involves bewildering astrophysics and math doing crazy things to itself instead of the straightforward, "Well, you had monkeys, and then dudes." It's still contentious, though, because it's a strictly rational, evidence-based argument for the creation of the universe (and such things are often trouble).
The important thing is that it's the reigning scientific theory among people who actually understand all of the physics madness involved, and these guys come up with awesomely futuristic ideas by using the big bang as a backdrop.