Today's film is The Grass is Greener starring Cary Grant, Deborah Kerr, Robert Mitchum and Jean Simmons.
The movie isn't bad (although it's very talk-y / very obviously used to be a play), but the titles by Maurice Binder are the best part (you can watch them here).
"Finding themselves strapped for cash, a British earl and his wife turn their mansion into a tourist attraction in this comedy of manners. When an American millionaire visits, he becomes smitten with the lady of the house."
See all the previous movie posts here.