In ''The Hunger Games,'' one of the toughest things for Katniss Everdeen to face doesn't come in the arena. It comes when she has to sit down for an interview with TV host Caesar Flickerman. And Jennifer Lawrence is going through a little bit of that now. The 21-year-old has been in the business since she was 16, once had a regular part on ''The Bill Engvall Show'' and has even been nominated for an Oscar, for 2010's ''Winter Bone.'' But she's never had this level of press attention-the kind of scrutiny (fashion layouts, magazine interviews, shopping-mall tours) that goes with what the studio hopes is the next young-adult movie franchise. It's left her a little worried, thinking of those pictures she sees of the harried ''Twilight'' cast. (''I look at Kristen Stewart now and think, I'd never want to be that famous, ' ''Lawrence told Glamour UK.) And it's left her, understandably, a little tired by the time-during a four day publicity blitz-she calls to talk. But like Katniss, she carries on. And is soon listing her acting heroes, (''Charlize Theron, Michael Keaton and Lucille Ball''), explaining why she once knocked out co-star Josh Hutcherson and sharing what she...