Alan Dean Foster does an adaquate job adding detail to a movie that wasn't quite what audiences were expecting.
Alien 3 deals with Ripley as she battles one alien after her rescue ship crashes on a prison planet.
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If you haven't seen the Alien movies you won't really be able to follow.
Foster doesn't ratchet up the gore content, but he does keep the prison language high.
These books based on the movie are good for those who want to dive a bit (a tiny bit) deeper in the story and characters.