Some bad science is inevitable in most science fiction - FTL travel, for instance - it would be difficult to imagine most sci-fi without it. Exceptions that are genuinely original, like The Martian or Arrival, are few and far between. A lot of modern sci-fi literature is just earth-based stuff but in space. An exception is Peter Cawdron's First Contact series - many of which would make great films. The best science fiction, like the best of any other genre, is really about the people, not the technology