There are few historical events that provide more interesting plotlines than the American Civil War. Brother versus brother. Industrial North versus Agrarian South. Freed slaves fighting for the freedom of others. All have been the basis of films. Below are some of the best Civil War movies ever made. Visit the War Movie Database for a quick list of Civil War films.
 

Cold Mountain (2003)
In the waning days of the American Civil War, a wounded soldier embarks on a perilous journey back home to Cold Mountain, North Carolina to reunite with his sweetheart. Based on the novel by Charles Frazier.
Related site: Battle of the Crater
Gods and Generals (2003)
Follows the rise and fall of legendary war hero "Stonewall Jackson." Directed by Ron Maxwell, and starring Robert Duvall, Stephan Lang, and Jeff Daniels, Gods and Generals is the prequel to the 1993 hit Gettysburg.
Related site: Ron Maxwell Official Site
Ride With The Devil (1999)
Jake Roedel and Jack Bull Chiles are friends in Missouri when the Civil War starts. When Jack Bull's dad is killed by Union soldiers, the young men join the Bushwhackers. Directed by Ang Lee, and starring Tobey Maquire and Skeet Ulrich.
Related site: The Civil War in Missouri
Gettysburg (1993)
In 1863, the Northern and Southern forces fight at Gettysburg in the decisive battle of the American Civil War. The defense of Little Round Top and Pickett's Charge are highlighted during the actual three day battle.
Related site: Battle of Gettysburg
Glory (1989)
Colonel Robert G. Shaw leads the American Civil War's first all-black volunteer company (the 54th Massachusetts Volunteer Infantry), fighting prejudices of both his own Union army and the Confederates.
Related site: 54th Massachusetts

The Civil War
PBS site for the documentary series directed by Ken Burns.

Civil War Journal
A documentary series illustrating various episodes of the American Civil War.
Raising the Hunley
National Geographic video about the confederate submarine CSS H.L. Hunley.

The Hunley (1999)
Tells the incredible true story of the crew of the manually propelled submarine CSS Hunley, during the siege of Charleston of 1864. Directed by John Gray, and starring Armand Assante and Donald Sutherland.
Related Site: Friends of the Hunley

Andersonville (1996)
The story of the notorious Confederate prisoner of war camp.
Related Site: Andersonville National Park Service Site

North and South (1985)
Two friends struggle to maintain their friendship as events build towards the American Civil War.
Related Site: John Jakes' North and South

The Blue and the Gray (1982)
America during the Civil War, as seen through the eyes of an artist correspondent.
Related Site: A Civil War Sketch Artist