This is a old post, but I agree, this is a very good place to start.
Lots of folks are more inclinded to watch a DVD than read a book, and this
one is very good for the beginner.
I have recommended and loaned my own copy to several people and it did help
them to understand.
For folks who want to get more info. Jerry Coynes "Why Evolution is True", mentioned
by John D. in his above post is very clear and conclusive.
You can then move on to Dawkins "Greatest Show on Earth"
If, after watching the video and reading these 2 books that little light inside doesnt
click on in a "ah-ha" moment, then you are hopeless ;)
Once you see for yourself how perfectly all the evidence fits, you will wonder why on earth
anyone could have a problem with it.
To biologists, there is no controversy over evolution as a reality, the controversy is only among
folks who know absolutly nothing about it except what they have read on the fundie websites or heard from thier church.
Also, many religious people, like the catholics imbrace evolution, and believe it shows how god "did it"!
Most of my theist friends and relitives avoid topics of biogenesis, evolution and big bang theory.
Asking them the question; what created God, is generally shruged off without a thought; "so,
since WHEN does god have to follow OUR rules"? or some similar retort.
Some of my younger theist friends will accept part of evolution, that is, on a "micro" scale, such
as viruses, etc. but you can explain to them how humans evolved until you are blue in the face,
they will not accept it for a minute.
Humans were created in "god's" image, and god was not a monkey, and, it's only a "theory" afterall! ;)
My older friends totally dismiss the concepts outright. It's all just something some crazy old atheist
scientist cooked up in his head so he could publish a book and be famous!! ;)
They know absolutly nothing about evolution or the man who discovered it, and they intend to keep it that way.
So my advise, unless your theist friend or relative shows a GENUINE intrest in the subject, dont even
bother to waste your time and theirs.