Adaptations and references
Since the beginning of the 20th century, this famous story has been adapted many times for the stage, feature-length motion pictures, and animated cartoons.
The earliest film version is Fox's 1921 silent version.
In 1927, the novel was adapted into the musical A Connecticut Yankee by Richard Rodgers and Lorenz Hart.
American comic artist Charles Forbell adapted the concept for his 1929 comic strip series Cuddles, an American Flapper at King Arthur's Court.
A 1931 film, also called A Connecticut Yankee, stars Will Rogers.
A Knight for a Day is a 1946 Disney short film starring Goofy that is loosely inspired by the novel.
The story was adapted as an hour-long radio play on the October 5, 1947, broadcast of the Ford Theatre, starring Karl Swenson.
A 1949 musical film features Bing Crosby and Rhonda Fleming, with music by Jimmy Van Heusen and Victor Young.
In 1960, Tennessee Ernie Ford starred in a television adaptation.
A 1966 episode of The Adventures of Superboy, the hero travelled back to King Arthur's Camelot and contended with Merlin and his Black Knight.
In 1970, the book was adapted into a 74-minute animated TV special directed by Zoran Janjic, with Orson Bean as the voice of the title character.
The 1976 Soviet animated film "The Mirror of Time" (Зеркало времени), features a segment which adapts a portion of the novel.
A 1978 episode of Once Upon a Classic, "A Connecticut Yankee in King Arthur's Court", is an adaptation that stars Paul Rudd and Tovah Feldshuh, with Richard Basehart as Arthur and Roscoe Lee Browne as Merlin. This episode was released as a feature on VHS and laserdisc by MasterVision in 1987 with the cover title Mark Twain's A Connecticut Yankee... and later as a double-feature DVD with The Amazing Mr. Blunden. The DVD version, released by budget label East West DVD at a suggested retail price of $1, lacks the series intro and Bill Bixby's introduction.
In 1979, Disney released the film Unidentified Flying Oddball, also known as A Spaceman in King Arthur's Court.
1979 also saw the Bugs Bunny special A Connecticut Rabbit in King Arthur's Court, described as being "plagiarized" by Chuck Jones.
Season 2 of the TV series The Transformers features the episode "A Decepticon Raider in King Arthur's Court", which depicts a group of Autobots and Decepticons sent back to the Middle Ages.
In 1987, Disney even paid homage to the story in a first-season episode of DuckTales ("Sir Gyro de Gearloose"), in which Gyro builds a time machine and flees the modern age for the time of King Arthur, taking Huey, Dewey, and Louie along for the adventure.
In 1988, the Soviet variation called New Adventures of a Yankee in King Arthur's Court appeared.
It was adapted into a 1989 television film by Paul Zindel and starring Keshia Knight Pulliam and René Auberjonois.
The television series MacGyver includes a two-part adaptation ("Good Knight MacGyver", season 7, episodes 7 & 8, 1991) in which a modern-day engineer is transported to Arthur's court, where he uses his "magic" (science) to assist Merlin and save the king from a deadly plot.
A 1992 cartoon series, King Arthur & the Knights of Justice, could also be seen as deriving inspiration from the novel.
In 1995, Walt Disney Studios adapted the book into the feature film A Kid in King Arthur's Court.
Also in 1995, Philippe Ross played a transported high schooler in A Young Connecticut Yankee in King Arthur's Court, with Michael York as Merlin.
Terry Pratchett's 1995 short story "Once and Future" tells a similar story of a time-traveler, Mervin, stranded in a pre-Arthurian "Avalon" who refers to himself as being like "the Connecticut Yankee".
In 1998, Disney made another adaptation with Whoopi Goldberg in A Knight in Camelot.
The 2001 film Black Knight similarly transports a modern-day American to medieval England (not in the time of King Arthur but in the year 1328) while adding a racial element to the time-traveler plot line.
Several independent films produced during the 1990s drew inspiration from the novel, such as Army of Darkness (1992) and the fourth and fifth entries in the Trancers series.
In the Carl Sagan novel Contact, the protagonist, Eleanor Arroway, is reading A Connecticut Yankee in King Arthur's Court, specifically the scene where Hank first approaches Camelot, when she finds out about her father's death. The quotation "'Bridgeport?' Said I. 'Camelot,' Said he" is also used later in the book, and the story is used as a metaphor for contact between civilizations at very different levels of technological and ethical advancement.
The fifth season of TV series Once Upon a Time features Hank Morgan. He is introduced in the episode "Dreamcatcher" as Sir Morgan, a widower with a teenage daughter, Violet, living in a Camelot that exists in a magical reality. Violet becomes a love interest for main character Henry Mills. Morgan does not appear on-screen again but is mentioned in later episodes. He and Violet, along with other Camelot residents, are transported to Storybrooke in the "real" world. When most of Arthur's court returns to Camelot, Violet informs Henry that she and her father will stay in Storybrooke since her father is originally from Connecticut in the same world. A tie-in novel, Henry and Violet, confirms other details consistent with Twain's novel, such as Hank leaving Connecticut in the year 1889.
In the Chronicles of the Imaginarium Geographica series by James A. Owen, Hank appears in several books as a time-traveling "Messenger" recruited by Mark Twain. Hank is able to travel through time and space at will using an enchanted pocket watch, which eventually suffers a malfunction that strands him in the time stream. (Sandy and Hello-Central are not mentioned in the series.)