"The Juror" is largely a conventional thriller, and it's also too protracted (113 minutes) for its one-note story, but it's professionally done, and elevated by a very good cast. As the villain, Alec Baldwin gets to chew the scenery at times, but at other moments he gives his role an almost disturbing complexity; when he tells Demi's character that he loves her, despite the monstrous things he has done, you believe him. A deglamorized Demi Moore is convincing, and then we have James Gandolfini as Baldwin's family-man associate, Anne Heche as Moore's best friend, Tony Lo Bianco as a Mafia boss, and others in smaller parts. They make this otherwise predictable studio product worth seeing. **1/2 out of 4.