In the animated film "Curse of the Were-Rabbit" the context is how a community prepares their garden produce for the great vegetable show. The actors have clearly garden-related names like Miss Thripp, Mr. Mulch, Lady Calendula and so on. However there is an odd one, Mr. Caliche.
Caliche in some parts of the world is a dense mineral substrate that is highly alkaline and devoid of organic matter so one would think rather an odd choice of name in a garden context. It is well known that Dreamworks, one of the producers of the film, was worried about the film's predominantly UK flavour and sought in various ways to make it appeal to North American audiences, and it may be that someone in the production team introduced a term that might make American audiences feel more at home in the story with no real knowledge of its relevance.
But maybe it is just my lack of experience with that material - can anyone shed light on the issue? What does caliche have to do with gardening where you dig holes in the dirt?