Interstellar is one of those movies where the costume design is almost invisible, which is part of what makes it so interesting. The simplest explanation is that the visual style is purposefully "realistic" and avoids any kind of futurism... which in itself is unrealistic. A conundrum, right? Technically, it doesn't make sense for people 50-100 years in the future to wear the same clothes as people in 2014. But from the perspective of a filmmaker who wants his apocalyptic sci-fi film to be taken seriously, this aesthetic decision makes perfect sense.
The earthbound setting of Interstellar is a classic American fantasy: a manly farmer hero, raising his kids in a bleak, rural landscape. Despite the film's image as a deep and thoughtful space epic, it still relies on the familiar old Hollywood scenario of a messianic white American dude being the one person who can save mankind. (And yes, I know his daughter does the actual saving, but this is very much a film about Cooper, not Murphy.) Underdog heroes NASA and Matthew McConaughey save humanity while the rest of the world is apparently helpless. Politically and socially, this is a tired old trope, but it aligns well with the kind of generic hero that can be inserted into a complex movie with minimal exposition. Cooper is the kind of guy who, for better or worse, is perceived as "universal." Luckily, McConaughey's performance was brilliant.
So here we have Coop and his kids, looking both relatable and realistic in their jeans and hoodies. This is the difference between a meticulously researched film that is actually realistic, and a film whose worldbuilding gives the appearance of realism, and therefore does not jolt viewers out of their comfort zone. On the whole, the appearance of realism tends to be the better choice. We're watching fiction, after all.


