
Question: When Katniss asks Johanna about Annie why does Johanna kind of stutter when answering?
Answer: Joanna won her games the year after Annie. It's possible she stuttered and corrected herself when recalling how many years ago Annie won was because she was shocked by how long ago it seems her own games were.

Question: Just who all are all those other Sawyers in the opening scene? I saw The Cook and Grandpa but who were the rest and why were they there?
Answer: We are to presume they are extended family members and/or associates of the family that we simply didn't see in the original film.

Question: The method of identifying citizens by a "tattoo" burned into their arm seems awfully prehistoric for such an advanced environment. The government would "know" the number of legit citizens and would know that the black market citizens were fake, right?
Chosen answer: There is virtually no system in the world that is completely foolproof when it comes to regulating a large scale system related to identification. We only know the tattoo are for certain services. There might be more high tech security features for more restricted areas. As for whether they have an accurate count of all their citizens, they might, but again, how you go about regulating these systems is generally the tougher part. At the end of the day people required special transports to even reach Elysium, so it might have not been as big a concern.

Question: As the rain comes and the creatures come out and start to damage the station and kill people, why did the entire crew not seek refuge in their ships? Obviously, if the ships were meant for the harshness of space travel and some offensive/defensive capabilities, wouldn't they most likely have provided enough protection from the organic weapons of the creatures? It would make the plot not work but maybe should have been eliminated as a possibility.
Answer: The walls of the settlement are likely to be just as strong as the hulls of the spacecraft. It's likely they are even stronger because the settlement doesn't have to worry about weight limits. Remember also that they had to worry about Riddick hiding and getting the units back.

Question: Why was Elizabeth crying at home when she read the news article?
Answer: She is crying because Simon is back in her life. And she knows that the only reason for that would be that her hypnosis worked. She reads the article and she knows what he has done, even though he isn't aware of it. As we see later in the movie he was not really a nice guy, especially not to her.
Answer: Joanna hesitates a bit when she's recalling how many years ago it was when Annie was in the games - she tells Katniss it was "four" then corrects herself and says "five." She then seems a bit somber when Katniss indicates that Annie had some kind of mental breakdown, implying that Annie is Joanna's friend. Joanna is being shown as having a softer side than the harder image she tries to project.
raywest ★