DreamWorks has unveiled the full, theatrical trailer for the World War I drama War Horse [WHORS] directed by Steven Spielberg [SSPIE]. Based on a novel by Michael Morpurgo that was also turned into a stage play, the story follows a horse named Joey and the young man who trained him. When they are forced to part by the outbreak of war in Europe, the horse is passed through different hands from the British to the German to the French, inspiring everyone along the way, until the horse is finally reunited with its original owner on the battlefield. With sweeping views capturing the horrors of trench warfare, War Horse looks to be an emotional, epic adventure.