I wouldn't say that "No, No, Nanette" has a stupid book! It has an innocent book, a charming book, a book from it's era (although re-written by Burt Shevelove in the '70's). I wouldn't hesitate to say a silly book. But, it's silly in the way that cotton-candy is silly. There is no "nutrition" there, just enjoyment.
Now, I would say that "Crazy For You" has a stupid book.
"A coherent existance after so many years of muddle" - Desiree' Armfelt, A Little Night Music
"Life keeps happening everyday, Say Yes" - 70, Girls, 70
"Life is what you do while you're waiting to die" - Zorba