Arrival (II) (2016)
- Ian is called Gary. Unlike in the film, he plays a major role in unraveling the mystery.
- Louise nicknames the heptapods Flapper and Raspberry as opposed to Ian naming them Abbott and Costello in the film.
- Louise and Gary's daughter is never named.
- Colonel Weber does not feature anywhere near as much in the story as he does in the film. He only makes a few brief appearances at the beginning and the end of the story.
- Gary accompanies Colonel Weber when he plays Louise the heptapod recording in her office.
- When Louise suggests to Weber that she meet the heptapods in order to have a better chance of understanding their language, he doesn't then go to seek the help of another linguist as he does in the film. He's reluctant at first but eventually tells Louise that he'll see what he can do.
- The heptapod's written language is referred to as 'Heptapod B' while their spoken language is referred to as 'Heptapod A'. As opposed to the film where their written language is simply referred to as 'Heptapod' while their spoken language is not named.
- The heptapods view time as a whole and are unable to grasp the concepts of "cause" or "purpose". In the film, they view time spherically, have a clear cause (they will need help in the future) and a purpose (they want to give humans their language, time perception and ultimately, bootstrap our technological level so we can help them in the future, completing the circle).
- The heptapods display their 'words' on their own "screens" which are mounted on small pedestals as opposed to being able to make them appear in mid-air in the film.
- Gary is never actually confirmed as being the father of Louise's daughter but it is very heavily implied that he is.
- Louise speaks of how she got into a relationship with another man named Nelson after she and Gary split up and he also started a new relationship though his partner is never named and is referred to as 'whats-her-name' by Louise.
- The spaceships remain in the Earth's orbit and instead the humans have contact with the heptapods through the use of "looking glasses" which were presumably sent down by the heptapods.
- There are 112 looking glasses worldwide (9 of them in the United States) compared to just 12 spaceships in the film.
- The memories come to Louise all at once and she cannot change anything with respect to them. In the movie, they come in a series of plot-convenient visions and she's able to react accordingly.
- Louise and Gary's daughter does not die due to an illness. It is implied she died in a rock climbing accident. Louise remarks at one point how she received a phone call from Mountain Rescue and how she and Gary had to identify their daughter's body in the morgue.
- General Zhang does not feature in the story. Neither does the business of China (or any other country) threatening to declare war on the heptapods.