That's impressive, quite a nice interface and you'll get some good consistency there I think. End result is cool, the trailer is a nice touch too.
The site I'm cobbling together is low-fi - for each image I upload I have a single 'title' field. I'm populating this from a spreadsheet which is a concatenation of a few columns (Title, year, director, actor, format etc). The search then picks out terms from that title (e.g. if I type Carpenter, it will probably find John Carpenter films and any actors or poster designers named Carpenter too!). The photos I've taken are pretty dreadful, but they'll do. The time consuming bit is going back and populating a spreadsheet like Jay's one above, it's taking me a long time and is quite monotonous (I sometimes think to myself "why am I doing this for such crappy posters??"). I think that once it's done, keeping it updated with new acquisitions will be ok though.