PARK CITY, Utah — The comedy streak at the Sundance Film Festival continued Saturday with the world premieres of the art world satire “The Gallerist,” with Natalie Portman, and Oliva Wilde’s “The Invite,” a sharp look a crumbling marriage. Natalie Portman, Seth Rogen debut new movies at Sundance Film Festival “The Invite,” which debuted at the Eccles Theater, marks Wilde’s third time behind the camera and first since “Don’t Worry Darling.” It received an enthusiastic standing ovation. Will McCormack and Rashida Jones wrote the script for “The Invite,” in which a couple on the edge have their upstairs neighbors over for dinner. The evening starts with awkward small talk and becomes a raw and revealing encounter that’s funny and devastating at times. “Several of the greatest moments of this movie were written by the cast,” Wilde said after the premiere. “We shot in order, which was incredible. … It was such a luxury.” There was also quite a bit of improv, Wilde and Rogen said. “I think there’s a seven-hour movie that you would have …