A terrific third feature from director John Boorman ("Point Blank","Excalibur", "The Emerald Forest", "Deliverance", "Zardoz", "Hope and Glory" and the excoriated "Exorcist II: Heretic" which crashed and burned so badly that it damage his career for a time ) uses a premise that has been mined for other movies (most notably "Enemy Mine"). Two enemies (Lee Marvin and Toshiro Mifune ) on opposite sides of the war end up stranded on a deserted island together. At first they fight for resources before realizing that they need each other to escape back to civilization.