Romance doesn't get simpler than this basic guy-meets-girl musical. Really, that's what the characters are called – we never learn their real names. He (Glen Hansard) is a street busker in Dublin who's almost past his sell-by date. She's a dewy young Czech immigrant. Together, they make beautiful music – literally. Each encourages the other to realize a dream deferred, each inspires and gazes with longing at the other – and yet the romance never moves beyond the chivalrous, platonic stage. (It's cool, but not necessary, to know that, in real life, Hansard and Irglova lived out the plot of the movie, more or less, as it was being filmed, and that their thwarted romance and musical partnership lived on in the touring act The Swell Season.) If you don't like old-fashioned Hollywood musicals where characters suddenly break into song and dance numbers, then Once is the musical for you.