White balance (WB) is the process of removing unrealistic color casts, so that objects which appear white in person are rendered white in your photo. Proper camera white balance has to take into account the "color temperature" of a light source, which refers to the relative warmth or coolness of white light.
Although Titanic's main characters Rose and Jack were entirely fictional, thus there was no such romance between a first-class woman and a third-class man, they were inspired to an extent by some real-life people, though Rose's inspiration has no connection to the Titanic.
