Jason Sudeikis cozied up with new girlfriend Olivia Wilde at the “SNL” after-party at Pranna in the Flatiron District. Our source said the couple shared dinner before he “happily showed her off to the cast. They were together all night.” Also there: Lorne Michaels, host Jimmy Fallon, Seth Meyers, Will Arnett, Amy Poehler, John Krasinski, Emily Blunt, Jude Law, Kenan Thompson and Bobby Moynihan.