The action swings between New York and Paris and for once Paris is played by itself, not by the usual stock footage of the Eiffel Tower seen through a hotel window. A small, resonant, genuinely romantic and very human film - I liked it a lot.
Unfortunately, I have to add that it won't be out in the UK till I don't know when - I caught it on a transatlantic Air France flight where the choice of English language movies was limited (or I might not have bothered). I should also add that I nearly always enjoy movies hugely on planes, and am often moved to tears by the sappiest things, which I put down to either the pressurized cabin or the large quantities of booze I've usually managed to put away by the time the film starts, so maybe I'm not the best judge. But if you need something similar to keep you going, I'd recommend 'Once' very strongly.