The version presently available, shown on Turner Classic Movies in January 2021, is the 1936 re-release, with a Twentieth Century-Fox logo, redesigned opening and closing credits, and original exit music eliminated. The shorter running time (85 minutes) also indicates that some editing had been done, most likely in order to meet Production Code demands which were not in effect at the time of the film's original release (though Will Rogers' exclamation "Canst thou tell me where the helleth I am?" remains in the print).
The name of Roger of Claremore, who Hank says was his ancestor, was an inside joke for Will Rogers himself, who was born in Claremore, Oklahoma.
Some sources erroneously reverse the roles played by Mitchell Harris and Brandon Hurst. Harris plays Sagramor and the Butler, and Hurst plays Merlin and the Doctor.
Included among the American Film Institute's 2000 list of the 500 movies nominated for the Top 100 Funniest American Movies.
Although the title of the film is "A Connecticut Yankee", this was not a film version of the 1927 Rodgers and Hart musical, which also was based on the Mark Twain novel. In fact, this film was not a musical at all and did not use the Rodgers and Hart score, not even as background music. The Rodgers and Hart version was never filmed.