Well, 43, I've always been both a film and history buff and even tried to make it in Hollywood as an actor and screenwriter... To no avail!
I have taught both WW2 History and Film classes, but I find I have learned most from just keeping my ears open, reading a lot of books and seeing a shinola pot full of movies. I'm sure smoking and drinking like a fiend has had some merit in my wicked, wylie ways! It also helps to be 58 years old...
(To all the girls I've told I am 22, I am just fibbing to 43...)
"The Night of the Generals is a 1967 World War II film adapted from the novel of the same name by Hans Hellmut Kirst."
However, I find Robert Cromie's The Crack of Doom mentioned in The History of Nuclear War in Fiction as being written in 1895. Is this the book you mean?
Let me know and I'll see what else I can find after I've had some din-din...
Later
Found this: Willi Heinrich CRACK OF DOOM. NY: Farrar Straus, 1958. Novel of Germans fighting Czech partisans. 313 pp.
and: Willi Heinrich is the author of a number of books, including Crack of Doom; The Cross of Iron; and, The Lonely Conqueror.
Under Cross of Iron's writing credits it lists "Willi Heinrich novel The Willing Flesh"
I must say I am not familiar with Crack of Doom but it seems to be one to read if you can find a copy.