In 1955, Deitch took an apprenticeship at the animation studio
United Productions of America (UPA), and later became the creative director of
Terrytoons, Gaston Le Crayon,
Tom Terrific, and
Clint Clobber. Beginning in 1955, while working at UPA, Deitch wrote and drew the
United Feature Syndicate comic strip
The Real-Great Adventures of Terr’ble Thompson!, Hero of History, starring a courageous child in fantastical adventures. A skit about Terr'ble Thompson had been recorded by
Little Golden Records, with actor
Art Carney and bandleader
Mitch Miller participating. That led to the daily strip, which ran from Sunday, October 16, 1955, to April 14, 1956. In early 1958, his theatrical cartoon ''Sidney's Family Tree
was nominated for an Academy Award. In August 1958, he was fired from Terrytoons and set up his own studio in New York called Gene Deitch Associates, Inc., which primarily produced television commercials. the first short created outside of the United States to be so honored. Munro'' was preserved by the
Academy Film Archive in 2004. From 1960 to 1963, Deitch was hired by Rembrandt to direct
Popeye cartoons for television for
King Features, and from 1961 to 1962 he directed 13 new
Tom and Jerry shorts for
MGM. Being a "UPA man", Deitch had misgivings about the latter property, thinking they were "needlessly violent". He also came to see what he perceived as the "biblical roots" in Tom and Jerry's conflict, similar to
David and Goliath, stating "That's where we feel a connection to these cartoons: the little guy can win (or at least survive) to fight another day." Alongside Rembrandt's head
William L. Snyder, Deitch co-produced and directed a series of TV shorts of
Krazy Kat for King Features from 1962 to 1964.
The Bluffers, which was based on one of Deitch's ideas, was also co-produced by him. He directed the 1966 film
Alice of Wonderland in Paris. In 1966, he worked with Czech animator
Jiří Trnka on a feature-length animated film adaptation of
The Hobbit. However, producer Snyder could not secure the funds, and in order to not let the rights for the novel expire, he asked Deitch to produce a short film adaptation in 30 days. Deitch and illustrator
Adolf Born made
a 13-minute animated film never intended for distribution; the film was long considered lost until it was rediscovered by Snyder's son and released on YouTube in 2012. Also in 1966, Deitch created a young girl adventurer in
Terrible Tessie. From 1969 until his retirement in 2008, Deitch was the leading animation director for the Connecticut organization
Weston Woods Studios, adapting children's picture books. Deitch adapted 37 films for Weston Woods, from
Drummer Hoff in 1969 to
Voyage to the Bunny Planet in 2008. His studio was located in Prague near the
Barrandov Studios, where many major films were shot. In 2003, Deitch was awarded the
Annie Awards'
Winsor McCay Award by
ASIFA-Hollywood for a lifetime contribution to the art of animation. == Personal life and death ==