The biggest question any potential moviegoer faces right now isn't so much which movie to see, but how to see it. Clash of the Titans opens this weekend and it's the third movie of 2010 to be released in 3D. It's only the beginning. From here on out nearly every big-budget blockbuster will be available at your local megaplex in both 2D and 3D options. Going 3D might seem like a no brainer, but 3D
