Fresh from her television appearance looking aghast at her brother Warren Beatty after the already legendary Best-Picture-flub at the Oscars, Shirley MacLaine is in a new theatrical release. Like too many movies in which the lead performer is over 80 years of age (the great MacLaine will turn 83 in April), “The Last Word” opens with a montage of photographs of said performer in her youth, and young adulthood, in this case doctored to make it look like she spent that adulthood being something other than a great motion picture star.