This is an unusual film in that it tells a love story that does not have a traditional happy ending, yet both parties end with a feeling of fulfillment in having known each other and touched one another's souls through their music. There is very little physical contact between the two. Instead, there is a mystical musical fusion. The movie contains more songs than dialogue, and it's intriguing to see the ways in which the film explores story through song.
Once cost very little to make, and the film style is very simple and almost entirely focused on these two characters, with the man's endearing father and the musicians who help with the demo CD also coming into the story. The movie did much better than anyone expected and because a surprise indie hit, not only being watched by millions of people and garnering an Oscar but also being made into a Broadway musical.
Once is a story about the power of music, and the behind the scenes story about the way this humble little film managed to capture so many hearts underscores the message about the impact that music created from the heart can have on people.