The American Medical Association and the Motion Picture Association of America are going head-to-head over the depiction of smoking in movies aimed toward children. Reported by USA Today shows that a study conducted by the AMA Alliance, a volunteer branch of the AMA, states that 57-percent of movies rated G, PG, or PG-13 have featured characters smoking since 2002. The PG-13 films are said to have a shocking 67-percent featuring smoking. The AMA Alliance accused the MPAA of failing to make good on its promise to include smoking in assessing a film’s suitability for showing to children. Seth Oster, a spokesman for the MPAA, stepped up and said that its…