While Halloween is on October 31st, Dia de los Muertos is November 1st & November 2nd.
The holiday focuses on gatherings of family and friends to pray for and remember friends and family members who have died, and help support their spiritual journey. Traditions connected with the holiday include building private altars called ofrendas, honoring the deceased using sugar skulls, marigolds, and the favorite foods and beverages of the departed, and visiting graves with these as gifts. Visitors also leave possessions of the deceased at the graves.
A common symbol of the holiday is the skull (in Spanish calavera), which celebrants represent in masks, called calacas (colloquial term for skeleton), and foods such as sugar or chocolate skulls, which are inscribed with the name of the recipient on the forehead. Sugar skulls as gifts can be given to both the living and the dead. Other holiday foods include pan de muerto, a sweet egg bread made in various shapes from plain rounds to skulls and rabbits, often decorated with white frosting to look like twisted bones.
This is a well-done video for younger children:
https://www.facebook.com/delicias.prehispanicas/videos/514395435379092/
Another animated film is "The Book of Life". The trailer is here:
https://www.youtube.com/watch?v=NBw5YScs8iQ
