i wanna buy a bluray movie , but i got a question.

[Severance]

first of all anyone tried this set?

http://www.amazon.com/Samurai-Champloo-Complete-Kari-Wahlgren/dp/B002KYIAKG/ref=pd_bxgy_d_img_a

and second if i buy it off amazon , will it be region locked ? =s because thats the main reason why im not buying blurays, i don't know if they are region locked or not.