1948 film by Emeric Pressburger, Michael Powell

Two young men attempt to prove they committed the perfect murder by hosting a dinner party for the family of a classmate they just strangled to death.

Unemployed Antonio is elated when he finally finds work hanging posters around war-torn Rome. However on his first day, his bicycle—essential to his work—gets stolen. His job is doomed unless he can find the thief. With the help of his son, Antonio combs the city, becoming desperate for justice.

In the ruins of post-WWII Berlin, a twelve-year-old boy is left to his own devices in order to help provide for his family.