When the Party’s Over

Manning Walker, now thirty, has short, bleached-blond hair and a low-key geniality. She shot “How to Have Sex” during the winter, when tourists flee Crete for warmer climes. The all-important club scenes required hundreds of extras (“We had buses of teen-agers coming in from all over the island”), and she found herself having to coax her freezing leading lady, Mia McKenna-Bruce, back into the pool for additional takes. The team built camaraderie through soccer matches, barbecues, and sing-alongs. “The whole film was meant to be designed in two halves,” Manning Walker said. “The first part is like Disneyland—fun, all the colors are quite clean and not messy. And then, slowly, it disintegrates.”