A, WWEIA categories of foods and beverages by year of movie release (5-year means). B, WWEIA categories of foods and beverages by MPAA rating. G indicates general audiences—all ages admitted; PG, parental guidance suggested—some material may not be suitable for children; PG-13, parents strongly cautioned—some material may be inappropriate for children under 13 years; and R, restricted—children under 17 years require accompanying parent or adult guardian.