The Horsemasters

The Horsemasters was a 2 part episode of the "Disneyland" TV show from 1961 which screened theatrically in some countries.
The film was one of several Disney films that were shot in England. It was Annette Funicello's first co-starring role in a feature film. The film included a song written by the Sherman Brothers, the first song which the duo ever wrote for a Disney project. The film received a comic book adaptation in the Four Color series by Dell Comics.
Plot.
A group of young people do a course in horsemanship in England.
Production.
It was based on a 1957 novel by Don Stanford. Film rights were bought by Walt Disney, who authorised a television film version to be shot in England. Disney made a number of films in England around this time, including "Greyfriars Bobby". In August 1960 Annette Funicello and Tommy Kirk were cast. It was Funicello's first co-starring role in a feature.
The musical number, "Strummin' Song", performed by Annette Funicello and written by the Sherman Brothers marked the first song the Sherman Brothers ever wrote for a Disney project.
The film was shot on location in England. Filming started September 1960. Funicello and Kirk were sent to England several weeks before filming started to practise their riding.
Funicello says during filming married members of crew would have affairs with the cast, and at times the director "would refer to me dismissively as 'the Disney girl' and make unflattering comments about me. Of course he was not the first and would not be the last to take a dislike to me because he felt I was Mr Disney's 'pet'."