Justin Long and Emmy Rossum. When a chance meeting gathers the cynical Dell (Long) and the witty Kimberly (Rossum) together, a crazy love like a puzzle has been set up. From a meteor shower in Los Angeles to an encounter in a hotel room in Paris to a fatal phone call, the film twists and turns in time, and an unforgettable emotional portrait emerges. Comet "is well filmed, with incredible chemical reactions between the protagonists, making it a unique cosmic love story.