All the ideas that Rould Dahl puts into his book "Charlie and the Chocolate Factory" are here in an imaginative visual form appropriate to the time it was made. A lot of attention was paid to the sets and visual effects, clever special effects such as a trap door and miniturization testify to the care that the producers put into making this movie. The theme of the movie is difficult for adults. There are bad children in the world. They come from bad parents, they're not created by emulation, but rather the parents "produce them", much like chocolate is produced in a factory. The factory is populated by miniature people named oomphaloopas that remind the listener at intervals of Dahl's moral points: Too much TV is bad for children, books should be read instead, and children need to adhere to an ethical code of some sort in order to grow up strong. And who knew Gene Wilder had such a beautiful singing voice! The music is some of the best show music of it's time, including "The Candy Man".