THE GOOD GIRL

Jennifer Aniston walks with a studied, defeated shuffle and speaks with a hard-won Texas twang as a discount-mart employee who, in her indie-movie misery — husband’s a pothead lunk; job’s a pit of boredom — becomes involved with a young, sensitive, and, it turns out, disturbed fellow cashier (Jake Gyllenhaal). The filmmakers claim to care about good people who sometimes do bad things — but they’re more interested in devising instances of unorthodox human behavior than in convincing us of their truthfulness.