Mmh.
The exploits of Henry Morgan (the pirate)- enough amazing feats there so that no Holywood fluff would have to be added.

Here is one that will never be made: The Life of Otto Skorzeny. I loath that guy, but I also have to grudgingly admire him. Read him up.

I'ld also wish for a Trilogy based on the war of roses. The intrigues... the battles.... ahhh.

A movie about charlemagne.

A movie about the (various)sacks of paris by the vikings... or Aachen (sp?) (keeping it in a limited timeframe).

A fictitious "Invasion of Japan" movie (WWII)

A movie about mercenaries fighting in europe at the beginning of the 16th century.