why wont this movie play on my Mac?

[Nuke Dukem]

I dl'ed from piratebay just like I use to on PC and never had this issue before..

 

[RealestSinceKumbaya]

download vlc player.

 

[Will Ross]

Download mplayerx plays everything

 

[Clem]

download vlc player.

 

[Nuke Dukem]

thanks..green for both of yall