Men of the Lightship (1940)

Men of the Lightship is a short propaganda film produced by the Crown Film Unit for the British Ministry of Information in 1940, the year after the beginning of the Second World War. It dramatises the bombing of the East Dudgeon lightship by the Luftwaffe on 29 January 1940 and was designed to portray Germany as a barbaric enemy. An opening narration explains the traditional understanding of lightships (stationary ships used as lighthouses) as neutral vessels during war.

More at Wikipedia.