Once, by John Carney

The Guy works part-time helping his father, who runs a small, vacuum cleaner repair business, but dreams of having his songs recorded and landing a record deal. His girlfriend has recently left him and gone to London, and he is still coming to grips with that loss and is emotionally vulnerable. One day while busking on Dublin's Grafton Street, he meets the Girl, an East European immigrant who has moved to Dublin to start a new life for herself and currently works as a house cleaner in an upper-class residence.