| In the Book |
In the Movie |
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In the event that the re-supply mission fails, Commander Lewis selects Johannsen to survive. The rest of the crew will die allowing her to eat the rest of the food and survive on the corpses. |
This is not mentioned. |
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Mitch Henderson refuses to admit that he sent the course change to the crew over Teddy Sanders' objections. Mitch stands his ground and insults Teddy. |
Mitch does not admit to sending the course change information but totally knuckles under and agrees to resign after Ares 3 returns.
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When Isis fails, Watney is instructed to write to the other crew members in case he dies. He tells Lewis it is not her fault he is stranded, encourages Beck to tell Johanssen how he (Beck) feels, encourages Johanssen to be botanist cool and carry a switchblade, tells Vogel that he is secret agent (german accent, base on Mars, chemistry bkgd) and asks Martinez comfort his parents. |
Watney writes to Lewis and asks that she speak to his parents. |
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Watney uses nearly all available space of the HAB including the crews bunks to grow potatoes. |
Watney uses only the one room for the crops.
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When the HAB air lock explosively detaches, it takes Watney much longer to repair his suit (with glue patches) and to roll the air lock (while inside) to the HAB to retrieve another suit to use. |
Watney repairs his face plate with tape and takes his time inspecting the HAB. |