National Film Board of Canada

&lt;strong&gt;&lt;em&gt;Tomorrow&amp;rsquo;s World&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;Source: Harry Mayerovitch alias/aka Mayo&lt;br /&gt;Copyright &amp;#169; 1943 NFB

&lt;strong&gt;&lt;em&gt;The Labour Front&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;Source: Harry Mayerovitch alias/aka Mayo&lt;br /&gt;Copyright &amp;#169; 1943 NFB

&lt;strong&gt;&lt;em&gt;Coal Face, Canada&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;Directed by: Robert Edmonds&lt;br /&gt;Source: Harry Mayerovitch alias/aka Mayo&lt;br /&gt;Copyright &amp;#169; 1943 NFB

&lt;strong&gt;&lt;em&gt;The Balkan Powder Keg&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;Directed by: Stuart Legg&lt;br /&gt;Source: Harry Mayerovitch alias/aka Mayo&lt;br /&gt;Copyright &amp;#169; 1944 NFB

&lt;strong&gt;&lt;em&gt;Our Northern Neighbour&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;Directed by: Tom Daly&lt;br /&gt;Source: Harry Mayerovitch alias/aka Mayo&lt;br /&gt;Copyright &amp;#169; 1944 NFB

&lt;strong&gt;&lt;em&gt;I Was a Victim of Careless Talk&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;Source: Harry Mayerovitch alias/aka Mayo&lt;br /&gt;Copyright &amp;#169; NFB

&lt;strong&gt;&lt;em&gt;War Birds&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;Source: Harry Mayerovitch alias/aka Mayo&lt;br /&gt;Copyright &amp;#169; 1943 NFB