In stumbling satire ‘Downsizing,’ it’s the ideas that got small

Is there anything sadder than a smart premise gone to waste through misguided execution, like the one director Alexander Payne squanders in the dreary satire “Downsizing”?Payne has a lot of targets in his sights, including consumerism, do-gooding scientists and the obliviousness of well-to-do people to see beyond their own navels. And the premise he and co-writer Jim Taylor devise seems like a perfect projectile to hit those targets: a near future where scientists have devised a way