Concerning the Easterlings

I have a question about the easterlings in the movie, in the books or at least in a dictoinary of middle earth, it says The easterlings that fought in the battle of pelennor fields were beared and bore great axes. but seemed to be atypical.....how come the movie got this wrong or what up with this im a lil confused on who the easterlings really where and y did the movie depict them this way<BR> <BR> Thnx in notice Turin.