This is not about little green men. It is about one man, Mark Watney, and his journey to survive on Mars. Alone. Without help and running low on food. Plus its Mars so not a real atmosphere, seriously cold, and you get the point. What makes this survival space epic film stand out is that it gets the science really right. None of that saved by the hairs on my chinny chin in this flick. If you are a science nerd, this is for you. If you are a space nerd, definately for you. If you are a science space nerd with friends just like you, perfect for any night when you need to remember how awesome science is.