1) The trailer for 'Love Actually' uses lighting and color to set a joyous and happy tone. Scenes are lit with high-key lighting to seem optimistic, and the color white, which symbolizes purity and safety, appears frequently. 2) Character shots show facial expressions and emotions, giving insight into each character and furthering the upbeat atmosphere set by the lighting and soundtrack. 3) While set at Christmas, the trailer avoids overt Christmas colors and instead uses the color red, representing love and passion, in outfits to hint at the film's romantic themes.