At Disney Studio, inside the sound stage of "The Martian" film crew.
Martin, dressed in a grey uniform, entered the soil storage repository, ready to become a Martian farmer.
Ridley Scott came over and reminded him, "You must use primitive farming methods."
Martin nodded, "Don't worry, I'm prepared."
As for farming, he was quite skilled at it, having been raised in a rural area that was nationally renowned for vegetable production.
On this planet, there were few who could farm better than his hometown could.
A prop master came over with a bag, which was filled with sealed bags.
Martin took one and gave it a squeeze.
Ridley informed him, "For the sake of filming effects, these contain real human feces."
Martin put the bag back and clapped his hands, "No problem."
Once every department of the crew was in place, Ridley returned behind the director's monitor. Following the clapperboard, the shooting began.