What is 'TRON: Legacy' about, anyway? If you're a fan of the original 'Tron,' then you probably already know ... but if you aren't, then this movie about people in strange outfits riding light cycles may seem just a tad puzzling to you.

We headed to Times Square in a quest to ask people what they know -- or think they know -- about this sci-fi sequel 28 years in the making.