It's been nearly twenty years since Tom Cruise flipped bottles around a Manhattan bar with face-slapping smugness in Cocktail. And his character was too busy knocking up waitresses and shouting at craggy Australians to teach us anything useful about making a perfectly-mixed tipple - leaving us on the eternal hunt for the best cocktail bars in the world. Know a great one? Send us a tip on where to find an amazing appletini or spectacular seabreeze...