For a contrarian view... I really don't understand why everyone thinks this movie was so well-made. I loved the book and was eagerly anticipating the movie, especially after all the reviews calling it a gripping, edge-of-your-seat thriller.
I didn't get any of the sense of impending danger and claustrophobia that I did from the book. Sure, he ran into some problems but he solved them so quickly there wasn't that "holy crap, what will he do now?" notion that his demise was always just around the corner.
(warning: spoilers) His trip to Schiaparelli crater was probably the biggest nail-biter in the book... the dust storm, the integrity of his makeshift "bedroom", whether or not all of the rover connectors & attached equipment would keep working, the danger of going down the "ramp" into the crater, and the overall sense of utter isolation as he made the months-long trip: it was all replaced by not much more than a screen wipe with his rover magically transported next to the MAV.
When he finally reached the MAV, after eating his meal "surviving something that should have killed me", then did his little victory dance and kissed the device as he arrived... that was such a huge moment and victory for him in the book. All gone from the movie so they could spend 15 minutes on a cheesy, completely invented recap scene at the end.
Oh, and the commander going out to personally retrieve him from the MAV? WTF???
I realize they had to make changes for the movie, but I thought it was all rather boring. My wife, who generally enjoys suspenseful movies but hadn't read the book, agreed.