Willy Wonka = Edward Scissorhands Charlie Bucket = Astro Boy Mrs. Bucket = Madame Thenardier Wilbur Wonka = Jabberwocky Mike Teavee = Lewis Robinson Mr. Teavee = Manhugger Arthur Slugworth = Mr. Archer
It wasn't a real chocolate river. Probably water with some mixture to make it brown and thicker. Otherwise it would be really smelly after a while of recording.