Short answers, pulled from the story.
Princess Mononoke is set in the Muromachi period of Japan. The story takes place in a forest of the gods and the human settlement of Irontown, where conflicts arise between animal gods and the encroaching human world.
The main character of Princess Mononoke is a young Emishi prince named Ashitaka. Ashitaka is cursed by a demon and journeys west to find a cure while navigating conflicts between nature and humanity.
Princess Mononoke was theatrically released in Japan on the 12th of July 1997. The film became the highest-grossing film in the country, earning 12.7 billion yen in gross revenue within a year of its release.
Princess Mononoke was directed by Hayao Miyazaki. Miyazaki began developing early concepts for the film in 1980 and led the production with a budget of 2.4 billion yen.
Neil Gaiman wrote the English dub script for Princess Mononoke. Gaiman made significant alterations for the American audience, including the removal of cultural context and the substitution of Japanese terms with Western equivalents.
The Forest Spirit is a deer-like god of life and death that transforms into the giant Nightwalker at sunset. The Forest Spirit heals Ashitaka's wound but leaves the curse intact, and its head is sought by both the boar clan and Irontown, leading to a chaotic battle that renews the land upon its death.