Once (2007), John Carney

A Dublin-based busker and vacuum-cleaner repairman enters into a fruitful relationship with a piano playing florist in a toe-tapping "video album" directed by John Carney and featuring a cast comprised entirely of professional musicians. He (Glen Hansard of the Frames) was a six-stringed street musician. She (Markéta Irglová) was a flower woman who couldn't afford to purchase a piano of her own. One day, after admiring the musician's songs and asking if he would take a look at her broken vacuum, the flower-pushing piano player discovers that she shares a remarkable sonic rapport with the mechanically savvy guitarist. As their musical sensibilities quickly converge to striking effect, the talented pair soon determines to record an album together.