I really don't care about the plot arc or the emotional content of Tron: Legacy at all. That said, the movie looks so lovely:
I've been thinking about this a bit, and I think it's interesting how much of the most impressive special effects I've seen recently have to do with light. The bioluminescence of Pandora, the light storm around the black holes in last summer's Star Trek, and now, the outlines in Tron that make substance seem irrelevant. There's no question that it's impressive to recreate putrefaction, to show people doing things that seem physically impossible. But light is a little mysterious, especially when it comes from sources we don't quite understand, it's beautiful. Making it new is inherently intriguing.