Music Video ideas

Our video will have only 2 characters; main character Dan (played by Tom) and a female stranger (played by myself).
It'll open in a train station, Dan is waiting at the station for his train. He gets on the train alone, and sitting across the train from him is a young girl. He sees this girl, stares out the window as the train pulls away to start the journey, and begins daydreaming.
In this daydream, he imagines himself with the girl. They are a couple and are very much obsessed with the relationship. It is apparent in the daydream that the couple think of nothing but each other. They act happy, content, and have fun as a couple in various locations: city centre, parks, plays parks, and the beach.
The video will be a split-screen, such as that in Aloe Blacc's "I Need A Dollar". Whilst the daydream is happening, the audience will see Dan playing the guitar to the song in the other side of the split-screen. He will be sitting alone by the window of his room. This gives the impression that Dan wrote the song after seeing the girl on the train and dreaming about her. This side of the split-screen will also be in black & white or decreased saturation, as this emphasizes and distinguishes that the two sides are taking place at different times.