Katie Holmes is quitting acting, to become a full time wife to Tom Cruise. The 'Batman Begins' beauty is one of Hollywoods most promising up and coming young stars. But at age 26 she wants to ditch her blossoming film career and devote herself to bringing up the baby they are expecting next year. A pal tells me 'Katie has decided to give up acting altogether. She's been telling friends that she and Tom have decided it is best that she stays at home and brings up their new baby.' 'Her decision is raising a lot of eyebrows in Hollywood....