The filming plan of "Once" began with the Frames band’s concert in Dublin in 2005. Director John Carney, as a filmmaker with a musical background, hopes to find a simple background and plot, and select some To shoot a non-traditional music film with songs that are acceptable to modern audiences, use a lot of songs to tell a modern and simple love story. The director intends to shoot a novel and unique movie, just like a video music album, but the core is a true love story.
Director John Carney believes that in our world, a three-minute song is equivalent to a 10-page dialogue, and the characters in the film replace conversation with songs. But this does not mean that there is no three-act dramatic structure in the story, but it is more biased towards songs than ordinary movies, and songs are the key to unfolding the plot.
In the end, director John Carney set the role of the actor as a singer who sang in the streets of the Irish capital Berlin, and asked Glen Hansard, the lead singer of the Frames band, to create a lot of songs suitable for plot development. A few months later, Glen Hansard wrote 10 original songs, John Carney wrote a 60-page script
.
