From what i have heard they didn't stage the most impressive scene from the book, with a destroyer, "Son of Thunder" (at least it's how it was translated to Russian 100+ years ago) shooting one tripod and ramming another...
I am reading a book again now. Amazing for what was written in 1898.
When I was a kid I have read all Welles 15 volume "collected works". Some stuff like "War in the Air" (sorry, I have to translate titles back to English from Russian) is still "actual" (that's why we build tanks and Americans buid bombers, our leaders have read Welles

) and was a real eye-opening back in 1900s.