 This film employed a great deal of split screen and optical tricks,  such as rear screen projection, so that having the big cat in close  proximity to the actors (especially Cary Grant (qv) who was more  worried about acting with the cat than Katharine Hepburn (qv))  could be kept to a minimum. (Hepburn is sometimes shown petting and  handling Baby. The leopards trainer praised Hepburn, stating that  Kate was fearless and could become an animal trainer if she so  desired.) Most of the split screens had a lot of movement in them,  which meant the dividing line had to be moved around as well. Even  the scenes of Susan dragging the mean Leopard on a leash are split  screened. You can see that the rope does not line up. A puppet  Leopard was also used in some shots. Its most clearly seen in the  shot after Susan gets the Leopard dragged into the jail. The  reaction shot immediately afterwards, shows David and Mrs. Random  with "Baby" the Leopard on the table. The Leopard is a puppet.