Back to the future: Or, um, something like that. We've already gotten a preview of all the '80s flashbacks the "Sex and the City" sequel will feature, and with vintage remakes like "The Karate Kid," "Nightmare On Elm Street," and even the actually new-but-about-the-'80s "Hot Tub Time Machine," all coming out this year, we're not even close to being done glorifying the questionable fashion sense this bygone decade brought us.