Bringing Up Baby (1938)

Grant plays a buttoned-up paleontologist hoping to secure a big donation for his museum. During a golfing excursion with a representative of the donor, he meets Hepburn -- a fast-talking woman who creates chaos everywhere she goes. Eventually they wind up at her estate in Connecticut with a leopard named Baby and a brontosaurus bone that's been buried by the dog. And the shenanigans are only just getting started.

It's a template for screwball comedies -- a complete delight.

B+