I'm not from San Jose, so I cannot respond from first hand experience.
I did read your description and then did some Goggle searches.
The Tech Museum
had a website which looked interesting. Why don't you call them and see what ideas they might have for a special function which could include an I-MAX Movie, exhibits, etc. While generally for younger children, they do have museum sleep-overs which might, with some modification, be what your daughter might like.
Alternatively, you might want to find another i-max style theater in your area and focus the event around the entertainment rather than the buffet. You can always find a restaurant with a buffet or family style dining near the entertainment (or possibly order in pizzas... at the entertainment).
As another alternative, you could rent lots of star war costumes... and let the kids have fun with making videos, etc. in costume--perhaps at a photography studio.
I hope this helps...Ron
Ronald G. Shapiro, Ph. D.Education By Entertainment