Friday. That natural aquarium the sea seems created for 3D — those colors, those fantastical inhabitants, those sharks (my, what a toothy grin you have). And Disney/Pixar are taking advantage of advances in technology to send a beloved clown fish named Nemo and his fretting dad, Marlin, on their separate journeys from the Great Barrier Reef to Sydney, Australia, in "Finding Nemo 3D." Not typically a fan of the 3D reissue, I find myself aching to see this gem anew. "Swim, don't wade, to see it," I wrote in 2003, when it became an insta-classic. Time to take my own advice.