My Brother's War (2005) - The A.V. Club
On the day of her engagement, Grace Kieler finds her family and fiancé divided on political matters. With her future husband off to join the Union army and her brother vowing loyalty to the Confederates, she is torn. She promises her father that she will protect and care for her brother. Upon her father's death Grace decides to cut her hair, don her brother's clothes, and take his name to join the ranks of the Rebel army. She must find him and keep him from getting killed. Along the way, she meets Virginia Klaising, a widow and mother grieving the death of her only son. Virginia beg...