How accurate is the Martian?

HOW ACCURATE IS THE MARTIAN?

Give an opinion:

In my opinion, apart from being a very good movie, is that the majority of the things that occurred in the film are impossible nowadays.

Things like creating water in the atmosphere in Mars I think it’s impossible because you need to purificate your water before you drink it. Then, in the Guardian there’s an article talking about that the wind in Mars is much less harder than in the earth, they do the comparison that a wind of 100 mph in the earth equals a wind of 10 mph in Mars. Another thing that I think is totally impossible is how the spaceship have fuel for another journey to Mars, so the voyage is too far from the earth and they need a lot of fuel and when they pass next to the earth they don’t take more fuel. And finally the biggest mistake that I considered was when the capsule explodes and all the cabin loses the pressure. So if you remember this you will remember too that Mark fix it with a plastic cut and insulating tape, that in my opinion was ridiculous.

In conclusion just like I said in the beginning, it’s a very good movie, so I have enjoyed it a lot and that’s the most important thing.