Jesse and Celine (Ethan Hawke and Julie Delpy), each alone and separately heartsick, meet on an aimless train ride through Austria, and decide to disembark and spend a day talking. That’s all there is to it—or, almost all—and yet this impossibly brilliant, moving film is a perfect date movie. Actually, it might be too perfect—does it raise expectations too high regarding just-met sparkling conversation, witty sex appeal, and intelligent soul sharing? Jesse and Celine seem preposterously and blissfully well suited for each other, no matter how messily realistic Richard Linklater’s screenplay is about emotional exchange—could their ease and confidence intimidate the naturally nervous dater? Perhaps—or maybe it’d help boil the water and get the gears greased. The socially handicapped might consider it a form of basic training to view this movie on (or even before) a date. Pay attention, pilgrims: this is how it is done. Better than its sequel, Before Sunset, and far, far better than the third time at bat with these characters, Before Midnight.