First love for National First Love Day (USA).

 

A boy and a girl fall in love at a resort at the Black Sea. He's the son of an architect, an optimist who sees creation where possible. She's the daughter of a nuclear scientist, the future an inevitable apocalypse.

[The best] sunglasses in film for National Sunglasses Day (USA)

– Why do you always wear those dark glasses?

– A souvenir of unrequited love for my homeland.

According to IMDb, the sale of sunglasses in Poland went through the roof after this film was released and Cybulski became his country's very own James Dean.