I was inspired by '80s movies,'' says Sean Smith, creator/co-exec producer of ABC Family's Greek, the frothy-as-keg-foam look at fraternity and sorority romances and rivalries at the fictional Cyprus-Rhodes University. ''They weren't life or death. Ferris Bueller didn't learn that when you skip school people will die.'' The result in Greek is a hearty dose of generation-crossing nostalgia that feels downright refreshing after a decade of teen-angst TV. In its first season last summer, Greek rode that buzz to become ABC Family's most watched original series ever among 18- to 34-year-olds — meaning, no, you weren't the only adult who found it confoundingly charming. Expect more of the same when Greek returns for season 2, and, yes, some (sorta) serious stuff, too. ''In the promos I'm taking my shirt off, like, five times, and people are half naked,'' says Spencer Grammer, who plays ambitious Zeta Beta sorority president Casey. ''But that's just to draw the audience.'' Whatever — we're not ashamed to be drawn.