Worst line: "I'm going to science the shit out of this!" (Not in the book). Best line: "You've got smoke coming off of you" (That line wasn't in the book but it was mentioned that he stunk). Unfortunate that Ridley changed the ending. The lame Ironman routine sucked big ones. Watch his hands after he cuts his suit, he would have been dead by the time he got to the airlock. On a positive, I liked the book and the movie as moderately scientific sci-fi. Mars' radiation would still kill you if you had been on it for 2 years in a tent though.