Canadians today have little appreciation of what is arguably the most famous D-Day cine film as it actually captured the North Shore (New Brunswick) Regiment and British Beach Troops from the first wave as they left their respective LCAs to assault the German beachhead defences. The Canadian cine and still photography taken during the assault phase was so dramatic that it was the first imagery seen by the Eisenhower's Headquarters in England and eventually the White House in Washington DC.
The Canadians trumped their other Allied counterparts and part of their success was in how the raw footage was quickly dispatched back to England in Press bags like the one illustrated below.
Sadly, poor storage practices in the post-war era lead to a fire which destroyed the original films, including the outtakes, so only copies are left for us to study and enjoy.