4. Apparently, Carrie Fisher is largely responsible for there being so much jewelry in The Last Jedi.
You probably noticed Rose and her sister Paige’s matching crescent necklaces. Princess Leia also wore cool spirally earrings and some awesome rings. Then there was the awesome Resistance symbol reveal ring that Rose showed the little kid on Canto Bight.
You might have also noticed a ring on Supreme Leader Snoke’s left hand. According to the Last Jedi: Visual Dictionary, the black stone in the ring was made from obsidian located beneath Darth Vader’s castle on Mustafar.
5. The phrase "I have a bad feeling about this" has been spoken aloud in every Star Wars film to date, but you might have missed it in The Last Jedi. That's because it wasn't spoken. It was "beeped" by BB-8.
During the opening battle sequence, BB-8 can be heard beeping a message to Poe Dameron. Rian Johnson has confirmed that the beeps translate to the iconic line (hence Poe’s request for “happy beeps, buddy”).
6. On the salt planet Crait, there are two huge giveaways that Luke isn't actually there in the flesh. The first has to do with the surface of the planet.
Every time someone or something touches the ground, the white crust cracks or melts to reveal the red salt underneath.
However, if you look closely at Luke during his battle with Kylo Ren (or what Kylo Ren thinks is a battle, anyway), he leaves no footprints behind — you know, because he’s not actually there.
But there’s another huge clue to the fact that Luke isn’t physically on Crait. He’s using his blue lightsaber to fight Kylo even though Kylo and Rey broke that lightsaber in two back in the throne room. (If Kylo Ren had been paying a little more attention, he probably would have caught this one, but he was too busy aiming all those guns at poor Luke.)
The next detail is about those golden dice Luke hands to Leia at the end of the film…