Episode 1 Screen Captures & Summary
Hmm, I went back and rewatched the first half of the episode, and
Spoiler for Speculation concerning Lelouch's fate:
There's something interesting about the last frames of the OP, and that is the Black King of chess has fallen on the checkerboard. In Code Geass, the Black King represents Lelouch, so is this hinting at his possible downfall by the end of the series?
On a related note, Suzaku is represented by the White Knight.