Which 1969 Paul Mazursky comedy about two couples has four names in its title?

In which Mel Brooks film does a director say "Will the dancing Hitlers please wait in the wings? We are only seeing sin… Who won the 1968 U.S. presidential election? The 1968 Nobel Prize in medicine was awarded for the interpretation of which code and its function in protein synthesis? The 1968 album "Switched-On Bach" popularized which Moog instrument? Who had a 1969 hit with "A Boy Named Sue"? Which country singer had a hit with "Stand by Your Man", released in 1968? Which 1969 Best Picture winner's title could be paraphrased as "12 o'clock herdsman"? Which U.S. vice president, who served from 1969 to 1973, had the middle name Theodore?