Such a classic. Cary Grant and Deborah Kerr accidently fall in love and the classic 'what if' prevails. After meeting on a ship crossing the Atlantic, they start off hating each other, but as the ship reaches its destination, they realize they can't live without the other. The problem? They're both in solid relationships with other people. They agree to meet at the top of the Empire State Building in six months time - if they still care about each other. Tragedy ensues, but fate tries to keep them together. A great sentimental movie and a must for any serious collector of classics.