Does anyone remember a film about a woman "curing" a man of ennui?

This is driving me mad. I remember watching a film about a woman "curing" a man of ennui. It's part of the plot in a 80/90's US kiddie comedy. The guy is stinking rich but bored and tells some dipsy woman that if he's not cured of his "ennui" then he will die. She proceeds to take him round Disneyland etc until he announces he is cured and she is really pleased with herself. Does anyone remember this?