trappedslider
Legend
While it is true that the movie lacked the deeper message of the book to its detriment, I actually agree with what the makers said in an interview. With the budget they had, they felt they could make the space marines awesome and the bugs so-so, make both marines and bugs middling good, or they could make the bugs awesome and the space marines mundane.
They opted to make the bugs fearsome, thinking they'd never be forgiven if they screwed up the bugs.
It originally started out as an unrelated script called Bug Hunt, before the studio acquired the rights to the novel and Verhoeven, disgusted by what little he was able to stomach of Heinlein's book, had the script rewritten to deepen the satire. The film was intentionally designed as the polar opposite of the book in terms of message, characterization, and themes — an attack on the idea that War Is Glorious.