Interstellar was good until the rushed BS explanation. It was just too much, too far fetched. I do get just not understanding something, but not under those circumstances.
Rogue One is better every time I see it, but I admit it wasn't what I expected. After that shock, I find it to be excellent and a sign of the SW universe growing up some.
Alien Covenant was on par with Prometheus, but at least the crew wasn't quite as stupid. Once again, they wasted a good character by killing off...well, no spoilers I guess.
The Martian was excellent. I love having a confident and intelligent character that doesn't break down emotionally every few minutes. Also a very good adaptation of the book that was written as a journal.
Edge of Tomorrow was good. Oblivion was good, but didn't go far enough. Both worthy of watching, but EoT is the one I'm more likely to crank up to rewatch.
Ghost in the Shell was good.
Ever see Wall-E? It's animated but one of the better scifi movies of the last many years.
As for GREAT scifi, I don't know. Star Wars aside, as I'm a huge fan of the recent two movies so far. I'm worried Blade Runner 2049 will just try to capture the mood and look of the first movie and drop the ball on the story.
Still haven't seen Valerian.
Bright looks really good to me, but that's in Dec I think. Mute takes place in the "Moon" universe, so it might be really good. Watch Moon if you haven't already.
The best scifi is on tv now...insert my standard plug for The Expanse.