Masterfull.
I would like to congradulate you on the exellent teaser to a hopefully even more exellent movie. Let me point out the fine points....
The movie opens into a peacefull, although tragic setting. It allows the veiwer to settle into the film, instead of exploding out at them. The action is not pointless, and there is a sense of irony due to the whole thing taking place in Los Angeles. Now, instead of some awesome spikey haired male with a huge sword coming out of the vehicle, there is a cute woman. This sets the whole movie apart, and also attracts crowds. With the bit of humor at the bomb scene, then a little rest, then action again, it tops off with an ending that makes the watcher want to see the whole thing.
Now, the bad part....
Animations where the humans move. You did very well in moving and placement of the characters, but when the woman moved, it seemed as though it wasnt following the laws of earth. her hair barely flew into the air as she ran, and all of the movement cycles looked awkward. This problem can be easily fixed,though. Just pay attention to people moving, pay attention to every little detail. trust me, this will pay off when you make the whole animation. enough of my ranting, i'll just say, great teaser, I hope to see your animation as a whole movie.....