It's a scifi film that actually portrays the sound of space accurately. As in, no sound at all.
It really is quite amazing when the exterior shots of the ship are completely silent, no music, no SFX, nothing.
Pik up 'the science of interstellar' book of you're interested in that sort of thing. The guy who they consulted to make the film scientifically accurate wrote it and goes about everything in it. Good read