Non-sensible Sunday

I've hidden a stormtrooper in this picture somewhere. Can you use your powers of observation to find him?

On Sunday sensible people stay in bed for a while, potter about, read the paper and generally relax in preparation for the coming week. They do not spend the day rising at 4:30 am, driving 220 miles to London, walking round a film and comic conference and then driving back again. Horay for sensible people. Meant the place was not so busy, and we got a chance to look around. And see a talk from two of the stars of Serenity, a good film that you really should have seen by now. I've put a whole bunch of pictures up on Flickr.