Yes.

The Bride (Uma Thurman) continues her vengeance against her boss and former lover Bill aka Snake Charmer (David Carradine) and her two remaining colleagues from the Deadly Viper Assassination Squad—one-eyed Elle Driver (Daryl Hannah) aka California Mountain Snake and Bill's younger brother Budd (Michael Madsen) aka Sidewinder. But the Bride is in for a big surprise.

Kill Bill: Vol. 2 is the second half of the Kill Bill series, preceded by Kill Bill: Vol. 1 (2003) (2003). Originally intended as one film, the resulting product had a running time of over four hours, so it was separated into two movies. Both Kill Bill: Vol. 1 and Kill Bill: Vol 2 were written and directed by American filmmaker Quentin Tarantino. [error] is on the IMDb books, but no release date has been set.

Having succeeded in killing O'Ren, the Bride tortures O'Ren's lawyer Sofie Fatale for information on the whereabouts about the rest of the squad. She then tosses Sofie down a hill, landing her near a hospital. Aboard an airplane out of Tokyo, she crosses Venita and O'Ren off her hit list, leaving Budd, Elle Driver and Bill still to kill. Meanwhile, having rescued Sofie, Bill pumps her for information and asks, "Is she [the Bride] aware that her daughter is still alive?"

Budd lies simply to hurt Bill. Obviously Bill and Budd are feuding and Bill must have done something to Budd (seeing as how Bill says, "Can't we just put the past in the past?"). The sword was a huge gift to Budd; to tell Bill that he sold it was just meant to be a crushing blow to his heart. It was also a way for Budd to show Bill what his life is like now: he hocked an absolutely priceless artifact for a paltry $250. He also makes mention that he lives in a trailer and works in a strip bar, which obviously doesn't pay very much. He's essentially broke and the smallest bit of cash is worth more to him than a priceless sword from his brother, whereas Bill could have easily helped him out, as we see Bill's life is much more privileged; he lives in a tropical paradise in a mansion.

It is not explained. One theory is that they had some sort of altercation, perhaps over what happened with the wedding massacre. Budd possibly was not proud of what happened that day and could not go on with the business. Notice the look on his face during the Bride's flashbacks. This may be what caused the split with the Vipers. As Budd is dirt poor while Bill is rich, it was likely that Bill sent the Vipers to kill the Bride and afterward disbanded them, as he was too upset by what they all did. However, Bill then took his fortune and left his brother to fend for himself. Budd probably felt guilty in the first place, as he was willing to accept his fate if the Bride found and killed him, saying that she deserved her revenge and that they deserved to die.

Bill's Chinese flute appears to be a Bawu flute, or at least a variation of a "free reed" bamboo flute. Similar if not identical to the flutes David Carradine played on Kung Fu (1972-1975).

The following is some dialogue to help explain it. Esteban: "Bill shot you in the head, no?" Kiddo: "Yes, he did." Esteban: "I would have been much nicer...I would have just cut your face." Notice how he makes a vertical motion with his finger up and down his lips when he says this. This is further indication that Esteban cut her face. Esteban likely did it because the woman was disloyal to him, and he wanted to make an example of her while also destroying any self-confidence she had.

Kiddo tried to start a new life where she was going to put her killing days behind her and live out her life like a normal woman. Bill knew that she could never do that, because she was "a natural born killer"...like him. This is also a reference to the film Natural Born Killers, a film Tarantino wrote, but has since disowned because he disliked what Oliver Stone did with the script.

No. This is one film in which he doesn't have any sort of appearance. This is likely because he had a cameo in Volume 1, when originally Volumes 1 and 2 were supposed to be one movie. Though he does have an uncredited role as "Director's voice"

As with Vol. 1, a special Asian version was created for Vol. 2 as well. Here only minor changes can be found. The Esteban scene is a bit longer in the Asian version but altogether, there's only a difference of 46 seconds between both versions.

Vincent Vega (Pulp Fiction) and Victor Vega (Reservoir Dogs) are brothers.

Laurence Dimmick a.k.a. Mr. White (Reservoir Dogs) and Jimmy Dimmick (Pulp Fiction) may be related somehow.

Jack Scagnetti (Natural Born Killers) and Seymour Scagnetti (mentioned in Reservoir Dogs) could be related.

Drexl Spivey (True Romance) and Marsellus Spivey (mentioned in Reservoir Dogs) could be related.

Earl McGraw (From Dusk Till Dawn, Kill Bill: Vol. 1, Grindhouse) and Edgar McGraw (From Dusk Till Dawn 2, Kill Bill: Vol. 1, Grindhouse) are father and son.

Bill and Budd are brothers.

Sgt. Donny Donowitz (Inglorious Basterds) and Lee Donowitz (True Romance) are father and son.

It's also possible that Jules in Pulp Fiction is also in Kill Bill as the organ player at the wedding rehearsal. His name has changed to Ruffus though.

Paula Schultz the name on the grave that The Bride is buried in, might possibly be a reference to the character in Django Unchained Dr King Schultz, as played by Christoph Waltz.

Note that some of the names of the characters somewhat correspond with the "career choice" of the other, an example being that Drexl is a pimp and Marsellus was a diamond fence who was doing 20 years in prison. Jack Scagnetti was a popular detective and Seymour was a parole officer, etc.

This takes some work, but all of the above films exist within the same movie universe. There are several links between all of the movies that can be made. The best link is the character of Earl McGraw who appears in all of the movies' continuities. McGraw dies at the start of From Dusk Till Dawn (1996) (D-D), so this would place D-D's events at the end of the timeline. Then there is Jasper who is alive in the Death Proof (2007) (DP) segment of Grindhouse (2007) but dies in Kill Bill: Vol. 1 (KB¹). There is also the link of El Wray from the Planet Terror (2007) (PT) segment of Grindhouse and the town that Seth Gecko and Richard Gecko were heading to in D-D, which was also called "El Wray". Another link is Dr Dakota Block who appears in both the DP and PT segments of Grindhouse, and this is the best place to start. Block is also the daughter of Earl McGraw and sister of Edgar McGraw who also appears in KB¹ and From Dusk Till Dawn 2: Texas Blood Money (1999) (D-D 2).

From this, we can start to piece together the chronology of the universe. The events of DP must happen before the events of PT. This can be assumed by the relationship between Dr Dakota Block and Earl McGraw that is frayed in DP and most of PT, but they do make up by the end of PT. Also the lack of "sickos" in DP would suggest this is before PT. Plus, Block leaves at the end of PT, but is back working in the hospital in DP. There is also a mention "in memory of" over the radio for Jungle Julia from DP in the events of PT. So far, we have (1) Death Proof and (2) Planet Terror.

Then we can move on to Jasper. As he is alive in DP but dies in KB¹, that would place the (current) events of KB¹ and Kill Bill: Vol. 2 (KB²) after the events of DP. Thus, (1) DP, (2) PT, (3) KB¹, and (4) KB². Then onto Earl McGraw who is alive in DP, PT and KB¹ but is killed in D-D, leading us to (1) Death Proof, (2) Planet Terror, (3) Kill Bill: Vol. 1, (4) Kill Bill: Vol. 2, and (5) From Dusk Til Dawn. But we have to include D-D 2 and From Dusk Till Dawn 3: The Hangman's Daughter (1999) (D-D 3). Edgar McGraw makes reference to the events and death of his father Earl in D-D 2, which obviously sets this film after D-D. Then D-D 3 is actually a prequel set in the 19th century, therefore it's the earliest of the connections.

In sum, chronologically the films go: (1) From Dusk Till Dawn 3: The Hangman's Daughter (2) Death Proof (3) Planet Terror (4) Kill Bill: Vol. 1 (5) Kill Bill: Vol. 2 (6) From Dusk Till Dawn (7) From Dusk Till Dawn 2: Texas Blood Money