City of ember Preview Clip

A preview clip of City of Ember, upcoming sci-fi movie, has shown up:


Emergency Control Room.
The children Mayfleet (Saoirse Ronan) and Doon Harrow (Harry Treadaway get into the emergency control room.

I am facing a real geeky problem: read the novel before seeing the movie or after? Life of a science-fiction fan can be so hard sometimes!

Anyway I have great hopes for the City of Ember!
:)