Actually the full title of the book is Lunatics and Lovers: A Tribute to the Giddy and Glittering Era of the Screen's Screwball and Romantic Comedies by Ted Sennett.

I highly recommend it because it is very insightful of that era of 30s and 40s music, and you may find some you have already seen and you'll find listings for plenty more, though I have noticed a couple of small errors made when they discuss It Happened One Night and My Man Godfrey, but otherwise it's a very good book.