There's an awful lot of books and movies (most?) that called "science fiction" that aren't - they're fantasy with technical looking gizmos. Sometimes they might tip their hat gently is the direction of realism, but it isn't a priority. As a fantasy fan, I'm okay with that.
If you want science then get it from somewhere reliable - somewhere that isn't just trying to find what looks most impressive on the screen or sounds most exciting on the page.
But if you want entertainment, then boost your credulity for a while and have fun.
