What's Up, Doc?

Carefree, eccentric Judy Maxwell (Streisand) has a suitcase with an encyclopedia and a nightgown--and eyes for repressed, eccentric Howard Bannister (O'Neal). Howard has a suitcase full of igneous rocks to prove an esoteric musical theory and an overly proper fiancée named Eunice (Madeline Kahn). None of them know Mr. Smith (Michael Murphy), who has a suitcase full of top-secret government documents and a nefarious man tailing him.