Well... this was fun.
I don't think you can say anything better about a movie. Conspiracy Theory was fun. You sit down and watch it, and you are going to have a fun time, you are going to be entertained.
It's a great blend of moderate action and comedic suspense. The plot twists are deep enough to be interesting and light enough to be entertaining in the darker aspects of comedy.
The characters, well, the characters are the very definition of the phrase, "he's a real character isn't he?"
Mel Gibson is fun to watch in this, he plays a character that is tormented, broken, and still endlessly amusing.
You really can't get better than a movie that is fun to watch.