City of Ember is a new film coming out this October. Check out this wonderful trailer. I think it looks like a lot of fun.
I love stories like this. A culture lost in time, being forced to face a new, or forgotten reality. It reminds me of this great Arthur Clarke novel I read once, whose name is escaping me, where the characters were all like 20th generation descendants of seed ship colonists who had reverted to hunter / gathers and never realizing that they were still on the space ship heading for a new planet. City of Ember looks like a fun film. It's the kind of thing I would love as a teenager. It's young adult sci fi, and we need more of that. The movie will be released on October 10th, 2008.