An Absent-Minded Chemist, A Test-Victim Wife, A Mindless Secretary, and A Genius Scientist!

What film contains all the characters I listed in the title? Monkey Business from 1952 is the only one I know! Cary Grant is the chemist, Ginger Rogers is his wife, Marylin Monroe is the secretary, and Esther, the chimpanzee, is the scientist! For the "Movie Scientist Blogathon" hosted by Silver Screenings and Christina Wehner, …