Revealing mistake: When the swordmaker writes "Bill" on the window, take a close look. The window has been wiped before (as happens at the end of the scene) and "re-steamed" - you can see the outlines of the wiping from earlier takes, with a clear contrast between that pane and the others.
Continuity mistake: When The Bride gets into the Pussy Wagon and tries to move her toes, the shot changes between one taken from her head and one taken from her feet. The one taken from her head shows her two feet touching one another and resting against the closed door. The one taken from her feet (which would have necessitated the door being open) shows her two feet not resting on anything and slightly apart from one another.
Continuity mistake: When Vernita Green takes her daughter's picture from the notice board in the kitchen she holds it at the top left corner when the camera is behind her. The shot changes to in front of her and she holds it by the bottom left corner, the shot moves behind her again and she holds it by the top left corner.
Continuity mistake: When we see the Bride in the "House of Blue Leaves", her hair is considerably longer than when it was while she was walking through the Tokyo airport. Since we see from time to time in the movie, the notations "one month later," or "4 years later," and there was nothing like that in the sequence, it seems that the Brides' hair grew at least 4 inches from the time she left the airport until the time she gets to the restaurant.
Revealing mistake: When the Bride is fighting the General of the Crazy 88's he slashes at her lower torso and scores a hit, but the slash on the Bride's jacket is already there before he strikes (it is not there in the previous scenes and when he slashes it makes the sound of him cutting the material).
Continuity mistake: When Vernita and The Bride are talking in the kitchen and Vernita shoots The Bride from the cereal box, you can see the bullet hole in the back wall of the kitchen, but then a little later that part of the wall doesn't have any bullet holes. Also, not only is the bullet hole not where you see it hit in the first place, it's on the other side of the bride's head, along with the splatter from the cereal box.
Continuity mistake: The table that Gogo falls on after hitting herself with the mace gets splintered into pieces, with debris underneath and all around where she lies on her back, especially in the area below her feet. Yet in the next shot when the Bride jumps down to resume her attack from above, there is no sign of the debris on the floor.
Continuity mistake: When The Bride is about to pick a sword from the rack she is about to pick a sword with a red shaft. Then Hanzo says tells her to pick another one from the same rack. When it cuts we can see that the sword with the red shaft is out of sight. Later we see that particular sword is on a low level of the shaft, but when we saw The Bride reaching for it it was obvious she wasn't bending down to get it. So the sword has moved lower on the shaft by itself.
Continuity mistake: During the fight in the restaurant, the Bride is surrounded by a large group of Yakuza. In a shot from behind her, she is staring at the opponents in front of her over the edge of her horizontally held blade. One of the masked villains is swinging a chain in an arc. A moment later the shot cuts to an overhead and the guy with the chain has disappeared - everyone in front of the bride (as well as to the rear and sides) are holding swords.
Continuity mistake: When Hatori Hanzo is talking to the bride, he calls for his assistant several times. At one point, he gets really mad and throws his knife unto the magnetic strips on the wall behind him and sticks on almost vertically. In the next few shots, the knife is positioned in different angles.