May Day celebrations across the globe

Title card: "May Day Over the World" / high angle shot of people gathered in New York City for May Day / Communist Party marchers in NYC with hammer and sickle banner / police officers backed into truck poised to impose order / marchers with caricature posters of Adolf Hitler and Benito Mussolini / Boston police put on show with tear gas / Boston Communists with signs "Stop Evictions and Foreclosures of Homes and Farms, Long Live the Unity of the Working Class" / Communist demonstrators around George Washington statue in Philadelphia / marches in Hyde Park, London / crowd shots in Tokyo / Mobile Guard with their horses in Paris / crowds in Soviet Union / police in Moscow / military planes in formation over the Kremlin / Soviet demonstrators march / Soviet leader Joseph Stalin watches parade / tanks in Soviet military parade / aerial views of Nazi demonstrators at Tempelhof field / German Chancellor Adolf Hitler addresses crowds at rally / Nazis marching with swastika flags