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Ultimate manly man Arnold Schwarzenegger learns what it's like to be an expectant mother in director Ivan Reitman's high-concept comedy. Schwarzenegger plays Dr. Hess, a medical researcher working on a revolutionary drug to help mothers carry endangered infants to term. When government regulations prevent Dr. Hess from testing the drug through normal channels, his partner Dr. Arbogast (Danny DeVito) develops an unorthodox solution: they will steal a female egg and implant it in Hess, who will carry the child himself. Predictably, much of the subsequent humor centers on the incongruous sight of the muscular Schwarzenegger undergoing the trials and tribulations of pregnancy, from morning sickness to labor pains. Emma Thompson returns to her comic roots and provides romantic interest as an incorrigibly clumsy but intelligent scientist who catches on to Hess' deception. Reitman, Schwarzenegger, and DeVito had previously had a hit with Twins (1988), which revolved around a similarly ludicrous medical premise, but they failed to repeat that film's success here, as audiences largely ignored the film and reviewers criticized the humor as disappointingly obvious.