BBC's Kill Bill Vol. 1 Quentin Tarantino Interview
Q. You were ready to start filming when Uma Thurman became pregnant. Did you ever consider going ahead with a different leading lady?
A.She got pregnant and I was like, "OK, do I wait or do I not?" But I can honestly tell you that I didn't have a choice. The way I look at it is: yes, this is my samurai movie; yes, this is my badass chick movie; yes, this is my spaghetti western and my comic book movie. Yeah, it's all that stuff... but it's also my Josef Von Sternberg movie, and if Josef Von Sternberg is getting ready to make Morroco and Marlene Dietrich gets pregnant, he waits for Dietrich!