I gave it 2 for some attempt at historical detail... To echo another reviewer, all the actors behave as in the 20th/21st centuries, not the Victorian 19th. The actors behave far too freely and with hardly any attempt at the formal dignity, stiff social restraint of the time, and no apparent attempt to represent the social mores and customs of the era. Watch the original version with Ralph Richardson to see what I'm driving at.
Or watch Zulu, Zulu Dawn, or Charge of the Light Brigade for more authentic historical recreation of how people were in those days.
The battle scenes in this version may have been 'fierce', but the pacing was far too 20th-21century. Even warfare was a more 'formal' and 'dignified' affair then than it is today. It took the First World War to change that.
IF you want 20th-21st century romance and military heroics transposed to the 19th century, this film is OK, for anything more historically 'real', best look elsewhere...