SPOILER: Hi Laura, To answer your question about what this movie is about. The whole movie takes place in the last few seconds of the girls life. As she is driving over the bridge the power plant explodes and kills her. What we see is her saying good by to all the people who truly loved her in life.
This is why after each chapter in the movie she ends it with saying goodbye to the person she was just thinking about.
The last scene while the grandfather is telling her what her grandmother said on her death bed is similar to what you hear the girl say through out the film.
The sleepy fellow mentions that he thinks that the power plan is going to explode at some point and i feel this is the source of the bright flash of light.
This is why after each chapter in the movie she ends it with saying goodbye to the person she was just thinking about.
The last scene while the grandfather is telling her what her grandmother said on her death bed is similar to what you hear the girl say through out the film.
The sleepy fellow mentions that he thinks that the power plan is going to explode at some point and i feel this is the source of the bright flash of light.