A paramilitary is a semi-militarized force whose organizational structure, training, subculture, and (often) function are similar to those of a professional military, and which is not included as part of a state's formal armed forces.
Quora User, hobbyist filmmaker. The IMDB Filming Locations page for this movie contains the list of all filming locations: Interstellar (2014) The corn fields were created in the towns of Alberta. Yes, they actually planted 500 acres of corn so that they can destroy it in the film.
You can't currently get that resolution from a digital camera/projector). Interstellar, and many of Nolan's recent movies, have sequences actually shot on IMAX 70mm film cameras. Those are the highest resolution images possible, and look absolutely stunning when projected on a true 15/70 IMAX film projector/screen.