From the Disney Parks YouTube Channel:
Since 2007, Disneyland park guests have been invited to celebrate Dia de los Muertos (Day of the Dead) at Rancho del Zocalo Restaurante in Frontierland during Halloween Time. A spirited tribute to the Mexican holiday honoring the dead, the area features cheerful skeletons and brightly colored altars with marigolds and sugar skulls. Guests even get their faces painted and enjoy festive traditional music during the celebration. Take a look at Dia de los Muertos at Disneyland park, and come see it for yourself now through October 31!
http://www.youtube.com/watch?v=yLspKJwSEUo