Good Wrinkles (1951)

Sunny-sweet the prune shows us how prunes are made from certain kinds of plums, why they're so good for you, and, in live action, some recipes made with prunes. As a subplot, he also explains why California prunes are better than those from the Pacific Northwest and other areas. (Of course, Sunny may be a bit biased, since this film was sponsored by a California organization of prune growers).