There are certain amenities that are obligatory in every high-end ($5 million and up) Hamptons’ home: En-suite bedroom-bathrooms, check. Wine cellar, of course. Home theater, naturally. Movie night for friends and family has become as requisite as dinner at Nick and Toni’s. And with the latest technology – a $35-thousand PRIMA Cinema Player – hosts have access to the latest film releases, even if they’re currently in theaters (though there’s an extra fee in that case). Heaven forbid that any South Fork homeowner’s view should be blocked by some big-haired person in the seat in front.