I'm watching Rebel Moon - so that you don't have to.

Yes, that is basically my verdict. It's pretty, but that's about all it is. It lurches drunkenly to a new planet every 10 minutes, belches two sentences of exposition that masquerade as plot continuation, and then spends the next eight minutes finding an excuse for an action sequence or some explosions with some attempts at pithy one-liners thrown in. None of the characters have any emotional depth. The only name I remember is the villain's.