I didn’t know there was a movie, but I found the book mostly boring too. She dived deep(ish) technically in three areas: malware, nuclear centrifuges, and policy.
Who exactly is that for? I enjoyed the long description of the program itself but I doubt most non-tech people would. The scientific background on centrifuges was painfully dry to me. By far the best part of the book was the human interest stories about the security researchers who found and reverse-engineered Stuxnet.