Trivia: The conductor of the band at the gazebo is played by Dick Wilson, who later played Mr. Whipple in the Charmin toilet paper commercials. His tag line for the product was "Please don't squeeze the Charmin!"
When Don Knotts is in the old Simmons mansion, he falls down a chute of some kind. If you watch closely you will see the stunt person looks nothing like Don Knotts. It is a younger man with very straight hair.