High key lighting aims to reduce contrast and suggest an upbeat mood, while low key lighting creates chiaroscuro effects. In romantic movies, high key lighting portrays happiness and love, while low key lighting conveys sorrow from heartbreak or death. In the filmmaker's romantic movie, natural sunlight and high key lighting are used for happy scenes between the couple Jack and Rachel, while low key lighting depicts Rachel's worry when Jack does not answer her call and her sorrow when seeing him with another woman Lilly. The lighting choices follow conventions of the romantic genre.