The tagline on the poster for Mel Brooks' celebrated 1974 comedy film "Blazing Saddles" was, "Never give a saga an even break." Not only is that a clever pun, but it reveals the central philosophy of modern pop satire. Anything that takes itself seriously enough the deem itself a "saga" is most assuredly ripe for ribald parody. Brooks would continue to deny even breaks to Alfred Hitchcock ("High Anxiety"), historical epics ("History of the World Part I"), and "Star Wars" ("Spaceballs"). In...