Fun Fact You will Love! #20
In films where they use actual real-life dog actors, the people who hove to edit the films often have to add CGI tails because the dog can't stop wagging their tail because of how happy they are.
A three second exposure meant that subjects had to stand very still to avoid being blurred, holding a smile for that period was tricky. As a result, we have a tendency to see our Victorian ancestors as even more formal and stern than they might have been.