The Mexican holiday that honors the dead is the backdrop for the new animated film “The Book of Life.” Stars Zoe Saldana and Diego Luna say “Dia de los Muertos,” or Day of the Dead, with its grand celebrations and colorful altars, is perfect fodder for a PG-rated film aimed at families. Saldana knows the tradition from her Dominican roots, and Luna has celebrated the holiday since he was a child in his native Mexico.
