So, my wife and I went to see this movie this past Friday and I have to say, I was impressed. If you're still on the fence about seeing this movie, do it! Even if you haven't read the book, or listened to the audiobook, and I highly recommend both, you'll enjoy it. The changes made to the story for the movie make sense and do not adversly affect the storyline at all and you're not required to know the story before seeing the movie. You'll laugh, you'll cry, shoot, you might even jump up and down in joy for some scenes.
Matt Damon plays his role perfectly, I'll never be able to read the book or listen to the audiobook again without picturing Matt as Mark Whatney. The supporting cast is solid and they participate in the journey just enough so that you actually pay attention to them and their story. I do wish some of the characters were fleshed out a bit more, but I think it's simply because they had bigger roles in the book and I understand about cutting those roles down for time, otherwise this movie would become a 3 hour slugfest. Mark Whatney's situation is the primary reason for the movie, so I have no problem with the sole concentration of the movie being on him.
Visually, the movie is breathtaking. The views of Mars are wonderfully created, even small things like dust devils, craters, stunning vistas and mountainous views, are done with such realism to make you feel as if you're right there with him the whole time. The Hermes is beautiful as it travels through space and gives the impression of a realistic and highly probable design straight from the NASA design bureau. I certainly would love to be able to see such a ship built in my lifetime.
Now the bad, not that it's really bad, but it must be mentioned. As Mr. Weir himself stated, the dust storms on Mars are not at all realistic. The reality is, the atmosphere on Mars is so thin that such dust storms could not happen. I certainly had no problem with suspension of belief on this subject as our hero had to be stranded there for some reason. Additionally, Mars' gravity is only just over a third of what it is here on Earth, yet everyone walks around normally. Again, suspension of belief is required here and again, no problems on my part. Both of these play no real role in the movie, it's just reality poking its nose in where it's not wanted.
One last bad thing, while I understand some of the changes made to various characters, I'm not sure they were all neccesary to make. Trying to be spoiler free here, but the role change for the climatic end of the movie was unneeded in my opinion and misses out on allowing the charactor who gets overlooked some much needed screen time. Those who have read the book and have seen the movie know what I speak of.
Overall, I rate the movie a solid A. It's actually been a weak year for movies, IMHO, compared to years past. This movie goes a long way to making up for that and may be the last movie I see this year, depending on reviews of the 007 movie, and it's only the second one we've gone to this year. Next year is looking good though, looking forward to Deadpool for sure.