Eight celebrities delve into their family history to discover secrets, successes and sorrow as Who Do You Think You Are?

In post-war Casablanca, Ronald Kornblow is hired to run a hotel whose previous managers have all wound up being murdered. French soldier Pierre suspects the involvement of ex-Nazis, specifically ...

Three men from a failing Berber village in the Atlas Mountains find work in a Casablanca restaurant. Head Waiter Said dutifully sends money back to wife Aicha who is raising their son and new baby.

But perhaps what's capturing the French spirit the most is a two-minute clip from the 1942 World War II film Casablanca, which has been shared thousands of times on social media over the weekend.