Cinderella (1950 film) overhears Cinderella humming the waltz played at the ball. Realizing that Cinderella is the mysterious girl, Lady Tremaine locks her in her attic bedroom. Later, the Duke arrives at the château, and Jaq and Gus steal the key from Lady Tremaine's dress pocket and take it up to the attic as Anastasia and Drizella unsuccessfully try on the slipper. Lady Tremaine's cat, Lucifer, ambushes the mice, but Bruno chases him out of the house, allowing the mice to free Cinderella. As the Duke is about to leave, Cinderella appears and asks to try on the slipper. Knowing it will fit,
Marilyn Tremaine Marilyn Tremaine Professor Marilyn Mantei Tremaine is an American computer scientist. She is an expert in human–computer interaction and is a past chair of the SIGCHI Special Interest Group of the Association for Computing Machinery. Marilyn Tremaine was educated at the University of Wisconsin, gaining a BS in French, mathematics and physics, and then at the University of Southern California, gaining an MSc and PhD in communication theory. Dr Tremaine was a Professor in the University of Michigan Business School and then a Professor in the Computer Science Department of the University of Toronto, Canada as part of the Dynamic