Chris Rock's may have landed himself in hot water with Oscar bosses as his joke about Jada Pinkett Smith was reportedly unvetted before the live show. The comedian, 57, was slapped in the face by Jada's husband Will, 53, after he stormed on stage when Chris jokingly compared her haircut to G.I. Jane. A source told Us Weekly that Chris initially rehearsed his speech with no mention of Jada. The insider added: 'Will was not in attendance for [the] rehearsal.' While on stage, Chris said: 'Jada, GI Jane 2, I can't wait to see it', which prompted Will to step...