Brad Pitt denies his current dedication to global humanitarian efforts is the result of his relationship with UN goodwill ambassador Angelina Jolie, insisting U2 rocker Bono is his inspiration. The MR AND MRS SMITH stars have been dedicating their time to a number of charity projects in recent months and Pitt names Bono as his role model. He tells America's TV Guide publication Bono's high-profile efforts inspired him to become more involved in humanitarian works, calling the frontman, "A wonderfully dedicated beast unto himself." Pitt narrates a new PBS documentary RX FOR SURVIVAL - THE HEROES which airs in America later this month (12APR06). The show focuses on individual heroes whose perseverance saves millions of lives across the globe. But the actor admits his charity work is soon slow down. He says, "My plan right now is to have a child."