Elizabeth Olsen and Alexander Skarsgard were more interested in chatting with each other in a corner than mingling with the plentiful A-listers at Vanity Fair’s party at the Sunset Tower. A witness said, “They were talking in a corner, for a long time.” The fresh-faced “other Olsen” burst onto the film scene last year with “Martha Marcy May Marlene,” and has no fewer than six upcoming movies. “True Blood” hunk Skarsgard split with Kate Bosworth last year.