Deliberate mistake: When the Crazy 88 crew is coming in to attack the bride they use one of the shots twice. It is the one that shows 1 guy jump over a banister and go to the left of the screen then another guy comes directly after him and heads directly towards the camera. It happens at 1:21:49 and 1:21:53. (01:21:45)

Kill Bill: Volume 1 (2003)
1 deliberate mistake - chronological order
Directed by: Quentin Tarantino
Starring: Uma Thurman, Michael Madsen, Daryl Hannah, Lucy Liu, Vivica A. Fox, David Carradine, Julie Dreyfus

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. (00:52:45)
Vernita Green: I fucked you up. I fucked you up bad, I wish to God that I hadn't, but I did. Be that as it may, I know I don't deserve your mercy or forgiveness, however, I beseech you for both on behalf of my daughter.
The Bride: Bitch, you can stop right there. Just because I have no intention of killing you before the eyes of your daughter does not mean that parading her around in front of me is gonna inspire sympathy. You and I have unfinished business, and not a goddam fuckin thing you've done in the subsequent four years, including getting knocked up, is gonna change that.
Trivia: The tune that Elle Driver is whistling in the hospital is the theme from the movie 'Twisted Nerve' (1968)





Answer: Bill used Hattari Hanzo's teachings for evil, instead of belief and self defense.