Ella Taylor has a good interview with Quentin Tarantino up at the Voice.
"My movies are painfully personal, but I'm never trying to let you know how personal they are. It's my job to make it be personal, and also to disguise that so only I or the people who know me know how personal it is. Kill Bill is a very personal movie.... It's not anyone's business. It's my job to invest in it and hide it inside of genre. Maybe there are metaphors for things that are going on in my life, or maybe it's just straight up how it is. But it's buried in genre, so it's not a "how I grew up to write the novel" kind of piece."