
Question: What did they mean in their meeting about no medicine on the mission?

Question: When the sharp shooter said to Ramirez, "That's my boy", was that meant to imply that Ramirez is actually his son?
Chosen answer: No, this is explained when O'Mara recruits Kennard. Kennard says that nobody would work with Ramirez because of his Latino heritage, so Kennard took him under his wing. And while he did that, he also taught Ramirez to shoot just as good he can, because before that, Ramirez was a lousy shot.

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: Is Tony Stark related to Agent Carter ?
Chosen answer: No, they are not related. His father used to work with Agent Carter but that is as close as it gets.

Question: Maybe this is explained better in the book, or maybe I just wasn't paying attention. But at the end, when Ender killed all the Formics, did he kill any innocents, or were they all involved in the first invasion? Because Ender never mentions innocents being killed, that would be a pretty good argument as to why it was wrong. If they were all involved in the first invasion, I don't see anything wrong with killing aliens that murdered millions of humans.
Answer: In the book, Ender had grown disillusioned with military school and was depressed. Destroying the entire Formic homeworld was his attempt to force the school to expel him, by enacting a suicidal plan of action so ruthless his superiors would believe him unfit for leadership. In the film it appears that Ender is simply trying to win the game as best he can. As for the Formics themselves, they operate with a hive mind so in a sense, yes they were all "involved" in the invasion of earth. However, wiping out of the entire civilization in retribution, especially once the audience hears the Formic queen express her dismay over the Formic's actions, is evil. The film somewhat glosses over this fact, but in the books it is clear the Formics did not understand that humans were sentient at all because they could not comprehend an intelligent species lacking a shared consciousness.
Yeah misunderstanding is the constant of the book series.

Question: Yukio said that it was always difficult for Mariko to make friends, but why?
Answer: It isn't really explained, however Mariko is distant and depressed. Presumably she has always been so.

Question: If those people at the start wanted to blow up the roof of the building they raided, why did they wait to blow the roof until the police had left? (00:02:00 - 00:02:30)
Chosen answer: Originally, I thought this would have been to keep murder of police off their charges if things went wrong. But then I remembered several cops were shot and killed during the roof top shoot out before the thugs took off in the chopper. What they were most likely doing is waiting till the chopper was a safe distance from the explosives before detonating it, so they would not blow themselves up. Just so happens the cops got away during that time.

Question: Who was Santana's prisoner and why did she not want to be unshackled?
Answer: Santana's prisoner was played by R&B singer Keri Hilson. Being unshackled and molested by all those men was probably the reason why.

Question: Something I've always wondered about trains in the old west on these unfinished railroads, and this movie brought it to my attention again. It shows the track still being built, and it's a single track for one train, no second track along side it. That being said, before the track was finished there is a train going down it one way at the beginning of the movie with passengers. When the train is taken over and forced to steam ahead out of control, it goes off the end of the track and crashes. Well if this hadn't happened, how would the train have gotten back? It is a one way train, on an incomplete track and stopping at a station to drop of passengers and supplies. How would the train have turned around to go the other way again?
Answer: There are stations in between the ends of the line that allow the train to unload passengers, unload cargo, hitch new cars, and turn to go in the opposite direction.
Answer: The exact quote was "there's no medicine in a gunfight," meaning the SEALs couldn't just stop shooting at the enemy to help another SEAL who was injured. They're speaking more broadly of the "Self-aid" concept, where each person needs to look out for himself until someone else can come provide medical assistance.
Excellent answer.