Watch The Grand Illusion (1938) (1937) HD Full Movie Free on SolarMovie. Watch The Grand Illusion (1938) (1937) online free. During WWI, two French soldiers are captured and imprisoned in a German P.O.W. camp. Several escape ...During WWI, two French soldiers are captured and imprisoned in a German P.O.W. camp. Several escape attempts follow until they are eventually sent to a seemingly inescapable fortress.