Lighting
Unarguably one of the film elements that has the greatest power to evoke emotions, lighting must be manipulated by the director to accommodate his or her desires for the movie. In broad terms, the two types of lighting approaches are: low-key lighting and high-key lighting.
High-key lighting is often seen in romantic comedies and musicals, encompassing an even lighting pattern and avoiding dark areas in the frame. Everything looks bright with little to no shadow at all. High-key lighting has little dramatic effect itself.