Fantasia is a 1940 American animated musical anthology film produced and released by Walt Disney Productions, with story direction by Joe Grant and Dick Huemer and production supervision by Walt Disney and Ben Sharpsteen. The third Disney animated feature film, it consists of eight animated segments set to pieces of classical music conducted by Leopold Stokowski, seven of which are performed by the Philadelphia Orchestra. Music critic and composer Deems Taylor acts as the film's Master of Ceremonies who introduces each segment in live action.

Disney settled on the film's concept in 1938 as work neared completion on The Sorcerer's Apprentice, originally an elaborate Silly Symphony cartoon designed as a comeback role for Mickey Mouse, who had declined in popularity. As production costs surpassed what the short could earn, Disney decided to include it in a feature-length film of multiple segments set to classical pieces with Stokowski and Taylor as collaborators. The soundtrack was recorded using multiple audio channels and reproduced with Fantasound, a pioneering sound system developed by Disney and RCA that made Fantasia the first commercial film shown in stereo and a precursor to surround sound.

Fantasia was first released as a theatrical roadshow that was held in 13 cities across the U.S. between 1940 and 1941; the first began at the Broadway Theatre in New York City on November 13, 1940. While acclaimed by critics, it failed to make a profit owing to World War II's cutting off distribution to the European market, the film's high production costs, and the expense of building Fantasound equipment and leasing theatres for the roadshow presentations. Since 1942, the film has been reissued multiple times by RKO Radio Pictures and Buena Vista Distribution with its original footage and audio being deleted, modified, or restored in each version. When adjusted for inflation, Fantasia is the 23rd highest-grossing film of all time in the U.S.

The Fantasia franchise has grown to include video games, Disneyland attractions, and a live concert series. A sequel, Fantasia 2000, co-produced by Walt's nephew Roy E. Disney, was released in 1999. Fantasia has grown in reputation over the years and is now widely acclaimed; in 1998, the American Film Institute ranked it as the 58th greatest American film in their 100 Years...100 Movies and the fifth greatest animated film in their 10 Top 10 list. In 1990, Fantasia was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".

Walter Elias Disney (; December 5, 1901 – December 15, 1966) was an American animator, film producer and entrepreneur. A pioneer of the American animation industry, he introduced several developments in the production of cartoons. As a film producer, he holds the record for most Academy Awards earned and nominations by an individual, having won 22 Oscars from 59 nominations. He was presented with two Golden Globe Special Achievement Awards and an Emmy Award, among other honors. Several of his films are included in the National Film Registry by the Library of Congress. Disney was the first person to be nominated for Academy Awards in six different categories, a record he shares with Alfonso Cuaron and George Clooney (although Kenneth Branagh later surpassed all three with nominations in seven categories).

Born in Chicago in 1901, Disney developed an early interest in drawing. He took art classes as a boy and got a job as a commercial illustrator at the age of 18. He moved to California in the early 1920s and set up the Disney Brothers Studio with his brother Roy. With Ub Iwerks, he developed the character Mickey Mouse in 1928, his first highly popular success; he also provided the voice for his creation in the early years. As the studio grew, he became more adventurous, introducing synchronized sound, full-color three-strip Technicolor, feature-length cartoons and technical developments in cameras. The results, seen in features such as Snow White and the Seven Dwarfs (1937), Pinocchio, Fantasia (both 1940), Dumbo (1941), and Bambi (1942), furthered the development of animated film. New animated and live-action films followed after World War II, including the critically successful Cinderella (1950) and Mary Poppins (1964), the latter of which received five Academy Awards.

In the 1950s, Disney expanded into the amusement park industry, and in July 1955 he opened Disneyland in Anaheim, California. To fund the project he diversified into television programs, such as Walt Disney's Disneyland and The Mickey Mouse Club. He was also involved in planning the 1959 Moscow Fair, the 1960 Winter Olympics, and the 1964 New York World's Fair. In 1965, he began development of another theme park, Disney World, the heart of which was to be a new type of city, the "Experimental Prototype Community of Tomorrow" (EPCOT). Disney was a heavy smoker throughout his life and died of lung cancer in December 1966 before either the park or the EPCOT project were completed.

Disney was a shy, self-deprecating and insecure man in private but adopted a warm and outgoing public persona. He had high standards and high expectations of those with whom he worked. Although there have been accusations that he was racist or anti-Semitic, they have been contradicted by many who knew him. His reputation changed in the years after his death, from a purveyor of homely patriotic values to a representative of American imperialism. He nevertheless remains an important figure in the history of animation and in the cultural history of the United States, where he is considered a national cultural icon. His film work continues to be shown and adapted; his namesake studio and company maintain high standards in their production of popular entertainment, and the Disney theme parks have grown in size and number to attract visitors in several countries.