We're gonna have to start calling Zoe Saldana sci-fi girl soon. First "Star Trek" (she played Uhura) and now the highly-anticipated 3-D space adventure "Avatar", by "Titanic" director, James Cameron. For her biggest role yet, Saldana is transformed into a 10-foot blue alien named Neytiri, whom she describes as "a warrior." "Science fiction is wonderful," she told the LA Times about her new love for sci-fi. "We can't limit our imagination and that's what science fiction never wants us to do." Let's hope this makes her even more of a household name.