The Secret World of Arrietty (original title: Karigurashi no Arrietty), is a 2010 Japanese animated fantasy film directed by Hiromasa Yonebayashi in his feature directorial debut. It is based on Mary Norton's 1952 novel The Borrowers. The film was produced by Studio Ghibli, renowned for its high-quality animation and storytelling.
The story follows Arrietty Clock, a tiny girl who lives under the floorboards of a countryside house with her parents, Pod Clock and Homily Clock. Known as Borrowers, they live by "borrowing" small items from the human inhabitants. Arrietty's existence becomes known to a human boy named Sho, who is ill and staying at the house for medical care. Despite the rules against interacting with humans, Arrietty and Sho form a bond, exploring themes of friendship, the clash between different worlds, and the impact of human actions on the environment.
The film premiered in Japan on July 17, 2010, and was released internationally in 2011. It was distributed by Toho in Japan and Walt Disney Pictures internationally, with an English-language version released under the title The Secret World of Arrietty.
The Secret World of Arrietty received widespread acclaim for its animation quality, storytelling, and emotional depth. Critics praised its delicate portrayal of the Borrowers' world and its environmental themes. It has a 95% approval rating on Rotten Tomatoes, reflecting positive reviews from critics.
The film's success helped solidify Hiromasa Yonebayashi's reputation as a director, and it continued Studio Ghibli's tradition of adapting beloved literature into animated films. Its themes of environmental consciousness and coexistence between different species resonate with audiences, reflecting ongoing concerns about the natural world.