Chris Guillory
www.chrismguillory.com
The thing about Starship Troopers is that it really wasn't an adaptation. As I understand it, the movie was already in pre-production as Bug Hunt when the studio realized they had the rights to the Starship Troopers book, and could lift some of it to add to the movie they were already making.
I never knew that, but it makes sense. Some dudes wrote a movie about shooting bugs. They realized they had rights to a book that mentions bugs in like two sentences. And, boom!