More American films:

The Chamber
In Cold Blood

If we don't limit ourselves to American films, there's also:

Dance with a Stranger (last woman executed in England)
Kieslowski's Decalogue 5 (?) or A Short Film about Killing
Let Him Have It

A Tale of Two Cities
-- almost any film about the French Revolution
Mary, Queen of Scots
Lady Jane

Modern Historical:
Breaker Morant
Merry Christmas, Mr. Lawrence

Shari L. Rosenblum

Screen-L is sponsored by the Telecommunication & Film Dept., the
University of Alabama: