If Saoirse Ronan was the girl taking all the coveted teen actress roles off the table a couple years ago (“Atonement,” “City of Ember,” “The Lovely Bones”), this year it’s 13-year-old Chloe Grace Moretz. First appearing as a tomboy in “Diary of a Wimpy Kid,” Moretz then turned heads as the ultraviolent, potty-mouthed Hit Girl in “Kick-Ass,” following that up as a forever-12 vampire in “Let Me In,” the adults-only remake of a celebrated Swedish art-horror film.“Kick-Ass” attracted controversy for putting a young actress in the midst of some over-the-top ass-kickery, but Moretz says her acting coach (her older brother Trevor) and mother vet every screenplay she’s offered. “My mom loved the characters, and so did my brother, and we always go with our instincts. It’s a film, it’s not real life, so we didn’t have a problem with the roles.” she says. “I put my heart and soul into a character, and whether people like it or not, I’m happy with my performances.” Critics have called Moretz’s work “terrific and fearless,” “beautiful” and “elegant,” while comparing her to impressive young actresses whose talents bloomed as they became adults: Jodie Foster and Natalie Portman (whom Moretz idolizes). “I’d absolutely die to work with her,” Moretz gushes. “She is so smart, so different than most actresses out there. I’ve always looked up to her.” If 2010 sounds busy, you should see Moretz’s 2011 schedule: She’ll appear in five releases, including Martin Scorsese’s first 3D film, “Hugo Cabret.” “He’s amazing, because he gives you so many choices and ideas about how to approach your role,” she says of the director.