Pitt revealed his plans in an interview with Australian chat show to promote his new film Moneyball. When asked how long he planned to carry on acting, the 47-year-old said: Three years. Asked what he would do afterwards he said: Hell if I know. But he added that he had enjoyed producing and getting stories to the plate that may have had a harder time otherwise. In another recent interview, the actor admitted that he was nearing his shelf life although he was still looking forward to a role playing a foul-mouthed grumpy old man. Pitt was being interviewed in Tokyo for the Australian show. His announcement comes as he and partner Angelina Jolie - whose joint worth is estimated at 155 million - visited Vietnam where second child Pax comes from. The couple have six children together - three biological and three adopted. Asked about whether they would add to their brood, Pitt said: I dont know that were finished yet, I dont know yet. TG