Continuity mistake: After Rey hits the sand worm with her staff, it rears up out of the sand and spits BB-8. Between shots of it coming up and then switching to a side view, suddenly BB-8's model is flipped like a mirror. Notably, the black marking on his underside is flipped, his eye and antenna are flipped around, and the blue slime on him is mirrored. (00:01:50)
Continuity mistake: When the sand worm spits out BB-8 and launches Rey's staff, both BB-8 and the staff go flying towards the downed AT-AT walker. They start to separate in the air, with BB-8 flying further and faster than Rey's staff. Yet in the next shot, suddenly they are together in the air again. (00:01:50)
Continuity mistake: When the sand worms pit out BB-8, we see a shot of the bottom of a downed AT-AT Walker's foot. The "toes" are visible and are a single piece with the foot fused to it, metal on metal, and the bottom of the toe is smooth and flat. But in the last shot of the episode, the bottom of the foot is shown and here the toe is not a solid piece with the foot, connoted by a hinge and joints with space. It has grooves and details on the bottom that are not smooth. More sand also appears mounded on the foot. (00:01:51 - 00:02:44)
Continuity mistake: When the sand worm is punching up out of the sand to spit BB-8 out, several globs of sand are spraying in the air around it. In the side shot, the sand kicked up in the air has vanished. (00:01:51)
Other mistake: When the sand worms pit out BB-8 and the staff is tossed, BB-8 does not cast a shadow under him, while Rey's staff does have a shadow. (00:01:51)
Continuity mistake: After the sand worm spits out BB-8, Rey jumps on top of it and runs across its back. In this shot, the colours on the worm are a little different. Whereas in all other shots its armoured shell was an orangish brown with tan colours, now it's an almost golden and brighter brown colour with a hint of green tint to it. The rest of its body and head are also overall lighter in colour. There has been no lighting change between shots. (00:01:55)
Continuity mistake: Rey runs up along the sand worm's back and jumps off it. Between shots, the position of the worm's back is different. In the first shot, the uppermost humps of its armored shell are the highest point under its head, and its position suggests it's still partly reared up out of the sand despite the sand not being visible under it in that shot. Then, in the next shot, some humps further down its back are higher than the forward humps, and the worm is more flat across the ground. (00:01:56)
Continuity mistake: After BB-8 gets spit out by the worm, Rey runs and catches him. When it cuts to a close-up, a lot on him has changed. His antennae are reversed where the tall one was back with the short one forward then to the tall one forward, short one back. The large blue slime on the left of his head vanishes, more slime appears on the right side of his head, and the blue slime on his lower body changes and shrinks. And then the position of Rey's arms on him is different. (00:01:58)
Continuity mistake: After the sand worm spits out BB-8, he has lots of blue slime on various parts of his mechanical body and eye. Moments later, when Rey catches him, the amount of slime on his eye is less and not as thick; several spots of blue slime have moved around or vanished, and some are different sizes. (00:01:58)
Revealing mistake: Just after Rey catches BB-8, she looks back at the sand worm. Suddenly, in this shot, you can see the rigging seam on its neck where it connects to the upper part of the mouth, which is not visible in other shots. Usually, the neck seam blends in or is not visible, but in this shot, you can see where the neck and top of the mouth are separate pieces in this 2D rig. (00:01:59)
Continuity mistake: As Rey is retrieving her staff with a slimed BB-8 in her grasp, she passes by and leaps onto the leg of an old fallen AT-AT Walker which is next to her. There is a fin, or toe, sticking up into the air from its foot with a groove down the middle in the close shot as she gets her staff. In one of the following shots as she's jumping up onto the leg, that middle groove on the toe disappears. Also in these shots, suddenly much more sand is built up against the foot of the Walker than before. (00:02:00)
Continuity mistake: When Rey is carrying BB-8 and running to grab her staff, then across the AT-AT leg, the heart-shaped lines on BB-8's "face" have disappeared. (00:02:03)
Continuity mistake: Rey grabs BB-8 and her staff, and then jumps up onto a fallen AT-AT Walker. She turns to look at the Nightwatcher worm and is standing right next to a very slime covered BB-8 on top of the AT-AT with her hand on his head. It cuts to a shot of the Nightwatcher from over Rey's shoulder and then back to a frontal view of her again from a higher angle. Rey didn't move once during those shots. But now she's suddenly standing further away from BB-8 to show the junk part between them, BB-8 now has much less slime on him, and the groove in the metal of the walker going down vertically behind BB-8 has vanished. (00:02:05)
Continuity mistake: After Rey gets on top of the AT-AT safely away from the sand worm, she is holding BB-8 in her arms. He's covered with blue slime in several spots. In the next shot, when she sets him down, the large blob and smaller blobs on his head suddenly become one, and then the slime on his lower body is significantly more. (00:02:07)
Continuity mistake: The piece of junk that Rey feeds to the Nightwatcher worm appears between her and BB-8 with the pointed end of it facing away from BB-8 towards Rey, with the round end pointed out. When she bends down to pick the junk up, in the close up the pointed end is now facing outwards from between her and the droid with the round end towards BB-8. (00:02:10)
Continuity mistake: When Rey catches BB-8 and then runs, she scales a downed AT-AT Walker to get to safety. She runs up one of the Walker's back legs and stops at the top. Then, a couple of shots later, when the sand worm is looking up at her, suddenly the Walker's head is now in the direction she just came from. (00:02:14)
Other mistake: After Rey and BB-8 escape the sand worm, she throws it a piece of junk to eat, and it catches the junk in its teeth. As it slowly moves away, in several frames, the animation blocking doesn't match up right, where the top tooth holding the junk at several points is not holding the piece of metal at all. Instead, it shows the top of it suspended in the gap between two teeth and not secure. (00:02:23)
Continuity mistake: The head of the AT-AT Walker that Rey gets on to escape the sand worm is shown twice. In the second shot, as the sand worm is leaving, the details on top of the Walker's head have vanished. The outward square protrusions and ridges are now a flat surface on the Walker's head. And one of the parts of its front-facing gun has disappeared. (00:02:24)
Continuity mistake: After Rey gives the sand worm some junk to eat, it starts to turn around and leave while diving back down into the sand. There is a cut to a different angle as it's turning, and suddenly more of its tail is buried under the sand between shots. (00:02:24)
Continuity mistake: BB-8 and Rey watch the sand worm go away after she feeds it and you can see BB-8 with the slime on him. It cuts to a different angle just before the droid asks her how she found him, and the slime spots on the side of his head change shape and size. Most notably the middle spot shrinks significantly and the bottom one over laps the edge of his head. Also between cuts Rey is suddenly much further back from BB-8. (00:02:25)
