Starting reading this little gem to my son. Only takes about 7 pages to knock him out.
This is not the story of the movie. I don't know how they pulled the movie (The Iron Giant) from this story. Inspired by and based on are very flexible terms.
Anyway, we are literal pages from the conclusion. Excellent little story for children. Although, if you are reading it to a child who has heard of the Marvel character, I recommend referring to the character in the book using the name from the film, because explaining that Iron Man and the The Iron Man are not the same, and then explaining that Iron Man is just a guy in a suit? Not as much fun as reading this short story.