Breathes there a man with soul so dead who never to himself has said "Awwwww" at this one? Surely every sentimental slob's very favourite Hollywood film of all time - and more than a few tough guys as well - the Second World War romantic adventure of them all is so timeless it's not just a classic it's a legend.
Love, honour, thrills, wisecracks and a hit tune are among the attractions, which also include a perfect supporting cast of villains, sneaks, thieves, refugees and bar staff. But it's Bogart and Bergman's show, entering immortality as screen lovers reunited only to part. The irrefutible proof that great movies are accidents.