There has been no shortage of Brad Pitt and Angelina Jolie sightings lately. Between “Kung Fu Panda 2” and “The Tree of Life,” the A-list couple have been regulars on the red carpet, including making a splash at the Cannes Film Festival. Tuesday night, Pitt and Jolie were spotted at the Los Angeles County Museum of Art’s Bing Theatre celebrating “Tree’s” upcoming opening May 27.