On his death bed, The King orders his kingdom divided into two halves, the Kingdom of Jelly and the Kingdom of Cucumbers. Before the king even dies, Prince Frederick declares himself "King of Cucumbers" and Prince Marmaduke becomes the “King of Jelly”.
Unfortunately the movie Cucumber Castle is not yet available on HBO Max.
| Directing | Hugh Gladwish | Director |
| Writing | Barry Gibb | Story |
| Writing | Maurice Gibb | Story |
| Production | Robert Stigwood | Executive Producer |
| Production | Barry Gibb | Associate Producer |
| Production | Maurice Gibb | Associate Producer |
| Editing | David Woodward | Editor |
| Production | Mike Mansfield | Producer |
