The bigger he goes the better his direction is, and the space travel, unwelcoming planets and sterile, functional technology of Interstellar all look great. It combines an interest in exploring the unknown with the despondency of being trapped in it. There are no bright colours to be found here, the hard sci-fi stuff is all well done. The problem is, hard sci-fi isn’t a big crowd pleaser and the things Interstellar is good at are watered down by the mass appeal elements.