I feel you haven&#x27;t read the book yet. I recommend it. The movie compresses it strongly, and so character development is pretty much skipped. Mark Watney is a smartass by design, and he has some more funny quips in the original text, but generally you can see how his attitude changes after hundreds of days of being stranded alone, having to fight for his life against both Mars and the crappy disco music. Even accounting for his training, I can totally believe him going totally pissed when he finally contacts NASA, and they immediately start bossing him around according to some checklists. But that&#x27;s the context that wasn&#x27;t emphasized in the movie.<p>Writing this I see now that the movie itself may not feel as &quot;hard sci-fi&quot; as it does if you know the book - e.g. the agricultural arc was very much rushed in the movie. In the book, the protagonists takes things more slowly, and much more thoughtfully.<p>(And I have no frikkin&#x27; clue what&#x27;s with the downvotes; upvoting to compensate.)