I personally like THE LAST COMMAND with Sterling Hayden.
I watched the “Texas Rising” miniseries last year-it wasn’t half bad on the historical accuracy, despite the usual tendency of historical drama made here to sensationalize and romanticize everything about battles, brutalities and especially real or alleged love affairs-I think the Brits are the best at historically accurate productions-not as prone as we are to be sensational-but then most of their productions involve historical events and people in centuries earlier than the 19th too-more wiggle room there...