base on an actual mining disaster and this early german talkie ( with english subtitle ) still remain one of the most effective docu drama ever film . feature many non professional actor and kameradschaft give a chill view of the friendship that bind the mine worker and regardless of which side of the french or german border they may be from . a deadly accident bring out the very best in everyone and nullify any superior order . a fellow miner in need will receive the help of his comrade and even at threat of great loss and include life . this film remind of the self sacrifice heroism show by the nyfd follow the 9/11 attack . put aside any formal rule and regulation and these men and woman in uniform know only one cause represent to save life and and to find their fellow fire fighter . more than 70 year later and kameradschaft still have the strong and timeless message represent a friend in need be a friend in deed .