This trailer is a bit different from the trailer and tv-spots that were run in the US, and the minimum I know is that this international version was used in the UK and in Germany. As Kevin points out, it does a better job in delivering an "approximation of the mood of the film". I agree.
Especially the US TV-spots gave the impression that "Zodiac" was a new "Se7en" -- no wonder many people didn't get what they expected.
Ultimately, I do like the US cinematic trailer just a little better. I don't know if that's because I've watched it a million times and got every frame of it stored in my brain.
But actually, I think it's because there is one thing I seriously dislike about the "international version": the incredibly ugly and incongruous 3D-animated title. I have no idea what hit the marketing guys there: Fincher's entire film creates a period feel par excellence, and that period mostly plays out during the 1970s. To create a trailer with the combined ugliness of every stereotypical Hollywood blockbuster-title seems unfitting to the film and unworthy of Fincher, the well known, infamous, legendary über-master of the title sequence.
Sorry. Got a little carried away there. What I meant to say was, the one thing I don't enjoy quite as much are the animated titles!
Hope you do like the trailer. Thanks a lot, Kevin, for sharing this!
International Trailer for "Zodiac"