Interstellar did good work with the black hole, but after that was as soft on science as a lazy Star Trek episode. At the start, a massive Saturn V-like rocket was needed to launch a "Ranger" shuttle from Earth, but after that the Ranger was able to descend from Endurance to Miller's planet (a delta-V of 0.9998c) and back up to Endurance (again, a delta-V of 0.9998c). Mann's planet had a surface of "frozen clouds." The tesseract and "bulk beings" were technobabble, on par with any use of "quantum" in Star Trek.