NASA spacecraft proves Einstein right when, travelling faster than light, it ends up near King Arthur's Camelot. On board are big-hearted Tom Trimble and Hermes, the look-alike robot he built. Tom immediately makes friends with pretty Alisande and enemies with the awful knight Sir Mordred. It seems Mordred is atempting to oust Arthur, while Alisande's father is not the goose she believes him to be but is also a victim of Mordred's schemes. It's as well the Americans have arrived.
Like Twain's original novel (as well as the 1949 movie adaptation starring Bing Crosby) Merlin is presented as an evil character intent on dethroning Arthur.
- Dennis Dugan - Tom Trimble/Hermes
- Jim Dale - Sir Mordred
- Ron Moody - Merlin
- Kenneth More - King Arthur
- John Le Mesurier - Sir Gawain
- Rodney Bewes - Clarence
- Sheila White - Alisande
- Robert Beatty - Senator Milburn
- Cyril Shaps - Dr. Zimmerman
- Kevin Brennan - Winston
- Ewen Solon - Watkins
- Pat Roach - Oaf
- Reg Lye - Prisoner
- Directed by Russ Mayberry
- Produced by Hugh Attwooll, Ron W. Miller
- Written by Mark Twain (novel)
- Don Tait (screen story)
- Release date: July 26, 1979
- Language: English
The spacecraft that was featured in this movie is on display at the Blackgang chine theme park in the Isle of Wight.
A Kid in King Arthur's Court (1995), likewise based on the aforementioned novel, follows the same premise: a male (in this case, an adoloscent) from the 20th century travels back in time to King Arthur’s Camelot and impresses the inhabitants with technology from the distant future. Moody again plays Merlin in the film, on this occasion as a more sympathetic character.