This is an excellent video someone put together of all the special effects used in Bringing Up Baby. Some of them you might recognize, but if you're like me you'll be surprised with most of it. It's really amazing what they were able to do then. Oh, and the Baby puppet cracks me up.

Director Howard Hawks had to find a way to keep Grant and Hepburn safely away from the leopard during the filming of the movie. I know that Hepburn was in one scene with the leopard (when we first see Baby). Grant refused to shoot scenes with the leopard because he apparently had a fear of large cats. Um, yeah. They'll claw your face off. I'm with you on that one, Cary.