Smith alum Sharmeen Obaid-Chinoy, director of the Oscar-winning documentary “Saving Face,” returned to her alma mater for a weekend screening of the short film, which chronicles the stories of Pakistani women who were the victims of acid attacks by their husbands. . . . Simmons grad Gwen Ifill, host of PBS’s “Washington Week,” was spied checking out of the Revere Hotel this weekend. . . . Gisele Bundchen was seen strolling on Revere Beach Sunday. . . . Senator Scott Brown and his wife, Gail Huff, took a break from campaigning to have dinner together at the Kowloon Sunday.