to both Columbia and Show Corp. for distribution; it would be released to the general public in 1964 by Films, Inc. While shopping around Of Stars and Men, the Hubleys collaborated again with Gillespie for The Hole (1962). Gillespie and actor George Matthews improvised a conversation between two construction workers discussing life and nuclear war. The film mirrored American anxieties over the Cold War, as it was in production during the Cuban Missile Crisis. The film won the Hubleys their second Academy Award for Best Animated Short, with John and Faith both being recognized by the Academy for the first time. The Hole led to the World Law Foundation commissioning the Hubleys to make The Hat (1964), a spiritual successor of sorts to The Hole centered around an improvised conversation between Gillespie and Dudley Moore as soldiers debating the morality of war. The Hat came from the World Law Foundation’s initiative to “reach…broader audiences” through “arts and media”. Both The Hole and The Hat use a more grounded visual style than the abstract expressionism of The Adventures of * and Of Stars and Men and address more serious themes of violence, nuclear war, nuclear anxieties, and death. The Hat was the only film by the Hubleys distributed by McGraw-Hill, and was also released as a book with illustrations taken from the film. Carter would collaborate with the Hubleys again on Urbanissimo (1966), a film humorously examining the impact of urban sprawl on the environment made for Expo 67 in Montreal, Quebec. A Herb Alpert and the Tijuana Brass Double Feature (1966), a film interpreting the music of jazz musician Herb Alpert, was released the same year. John and Faith won their third Academy Award for the short, and the film is today considered to be an early prototypical example of a music video. The film was distributed by Paramount, marking the first collaboration between Hubley and a major Hollywood studio following his 1952 blacklisting. Hubley began teaching filmmaking at Harvard in 1962, becoming the first teacher of animation at Harvard’s Visual Arts Center. Hubley wrote an adaptation of Edwin Abbot’s 1884 novella Flatland, and collaborated with his students as well as Dudley Moore and several members of Beyond the Fringe. The resulting film, Flatland (1965), was directed by Eric Martin. As early as 1964, filmmaker Joseph Koenig pitched a film explaining the importance of voting to the National Film Board