In case you haven't seen Thor (in which case you are really missing out and that makes me sad), the scene I have chosen comes at a low point in the titular character's life. He's been cast out of his home in Asgard for starting an unnecessary war, he's been stranded in the middle of New Mexico (and nobody wants that), the source of his power, the hammer Mjolnir, has been found and taken by a government agency known as S.H.I.E.L.D, his brother Loki is king since their father went into a god-coma, and Loki has some serious daddy/brother issues that lead to him, in this scene, visiting Thor, who was just captured trying to recover Mjolnir, to tell him that their father is dead and that Thor can never come home. Why? Because Loki is a terrible, terrible person.

Set Design
This set is, for all intents and purposes, an interrogation room. The walls are white. The floors are white. The rooms outside this one are white. There is a sense of sterility in it, of containment. Every piece of this room is some rectangular shape or straight line, clearly meant to box the character in. Throughout cinematic history we have been taught that government facilities, especially secret government facilities, look clean, and unfeeling, and unremarkable. That is this room to a T. It becomes more interesting when you take into consideration the context, and the interaction between the characters. This is a room meant to convey a distinct lack--of color, of inhabitants, of feeling--and in it Thor is being told that his father is dead and he can never go back home. It really helps to accentuate the callous decision Loki has made in hurting his brother the way he does, and the apathy with which he delivers on it.

Lighting
This is some really, really intense lighting. As I mentioned before, there is a sort of medical sterility about the room and the too-bright fluorescent lighting helps to emphasize that. There are the overhead lights clearly visible in multiple shots, but it's obvious that there are lights aimed at the set from the sides as well. I believe the aim was simply to create that sterile environment. I might also add that it does a considerable job of highlighting the characters' faces, which is necessary for such an emotional exchange.

Space
The use of space in this scene is really interesting. Aside from the original establishing shots to set up the parameters of the room as it relates to the characters, most of the rest of the scene is conducted in varying levels of close-ups that barely show the background space at all. It is worth noting that in the establishing shot there are no other props aside from the chair upon which Thor sits; the space is, effectively, essentially empty. It does not seem particularly large as a whole but relative to Thor, who is way taller than the average human, it seems large. It's also interesting to explore the use of camera angles to display the relationship between Thor and Loki. Loki is frequently shot from a low angle, indicating that he is the one that holds the power in the relationship, and he's also standing, and Thor is sitting.