I guess I shouldn't have gone to see Robots on a day when I'd already watched The Incredibles on DVD. It's a visual masterpiece, but the story suffers in comparison.
On the other hand, it did allow me to see the new Episode III trailer for the first time, so in that regard, it was $30 well spent. (Two kids' tickets, my admission price, large popcorn & drink.)
There wasn't any clear support for my spoiler theory, but the trailer makes one thing pretty obvious -- even if there aren't any major twists or revelations, this movie is going to pack a heck of a punch.