Zeta-Jones remains the perfect amalgam of Faye Dunaway and Kathleen Turner, all the breezy sexuality with fewer sharp angles. She should be a bigger deal than she’s been. Meanwhile, Butler never seems to run out of opportunities to stun us with his averageness. You hope he has a “Silver Linings Playbook” in him, and then you see this. With Zeta-Jones, the loss is entirely ours. She hasn’t had a great part since the Coen brothers’ undervalued film noir-comedy, “Intolerable Cruelty,” which presented her with a rare equal in an altogether different George — Clooney. That was nine years ago. We need her now, and not as Gerard Butler’s side dish. I assume Zeta-Jones is here with him merely for the exercise. She would have been better off with a treadmill.