1997 film by Ariel Zeitoun

Who would have expected Brigitte to marry a prisoner with a long sentence in the first place? In this romantic action movie, that is only the first in a long line of surprising actions by the young woman. Somehow, she manages to get hooked to the young prisoner before realizing that he'll be locked up for another three or four decades. She decides that this is much too long to wait to spend time with her sweetheart and decides to learn how to fly a helicopter. Why? So she can fly in and take him out of his prison yard, which is exactly what she does, thrilling romantics all over France and seriously upsetting the authorities. This award-winning film is based on a true incident from 1986.

Diagnosed with an incurable illness, Charles, a rugby tycoon who has made a fortune in New Zealand prints an ad in his hometown looking for his sister that he's not seen in fifty years. A notary clerk, believing that Charles has a terminal illness responds to Charles' search for heirs claiming to be his sister. Charles finds that he was misdiagnosed and returns to France to meet his long lost sister.

2005 film by Florence Quentin

Two babies are switched at birth. When the mistake is discovered 12 years later, it leads to complications in the lives of both families. One family is affluent, with dutiful and (apparently) contented children. The other family is poor, with rambunctious (even delinquent) children, often hungry, but with lots of laughter in the house.