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

[Severance]

i think this is going to be my first Bluray movie

http://www.blu-ray.com/movies/MirrorMask-Blu-ray/1122/

next is this (im not sure if its region free, but it didn't mention)

http://www.amazon.com/Pirates-Caribbean-Trilogy-Blu-ray-Johnny/dp/B001BKZD7S

whats the point of region locking? its such a dick move and no one have use for it.