Gary Cooper is a millionaire visiting in France when he meets Claudette Colbert. They fall in love, but he is so brusque and business-like that she doesn't like him. Her father, Edward Everette Horton is a marques, but he's broke. He wants her to marry him and she finally agrees. Then she finds out he's been married 7 times before! She calls it off and finally agrees with a pre-nup for $100,000 a year (in 1938 dollars!) if they divorce. They marry, but she won't put out, saving herself for her "real" husband in the future.
Very funny and very witty as you'd expect from Lubitsch, with a script by Charles Brackett and Billy Wilder. There's some very funny things regarding men's pajamas. Almost a 4-star picture, could become one with a few re-watches.