From "Spider-Man" to "Send Help," the pop-comic director has never lost his signature style. A connoisseur of dark comedy, Sam Raimi thrives in the exciting artistic space between cruelty and delight. At 66, the American director’s body of work is built on the understanding that laughter and fear are adjoining emotions — and that sometimes the fastest route to one is running straight through the other. The brilliantly managed seriocomic suffering in Raimi’s hilarious new survival thriller, “