Because the child's world is always the simplest and most beautiful, and the little girl and her red color also represent the only glimmer of hope in that dark and colorless cruel era. This is also the most direct element that directly hits Schindler's heart and makes him start introspection, change and sublimation.
So when Schindler couldn't calm down for a long time after seeing this inhuman catastrophe, he also reflected and positioned himself and his surroundings. When he began to interrogate himself, it was also the time when he began to change silently. When he started to save people, he accidentally saw the little girl who had left this world in the crematorium, which was undoubtedly a disastrous "destruction" for Schindler, destroying his hope for the world and the darkness and shame in his heart.
Of course, this is not only the effect of visual impact, but also a kind of contrast, which arouses the audience's thinking and emotions. When a touch of red appears, in black and white, it highlights the atmosphere of the scene. The appearance of the little girl in red, depressed, sad and heavy, is not the light of hope, but more noticeable.
Or, however, this red color is even more dazzling! This dazzling red color can better reflect the grief and trampling on life.
Meanwhile, red is the closest color to blood. This is a terrible way to deal with it. Black is depressing, and red is closer to the fact of blood flow. As a result, the tragic fate of the people killed in the film was more deeply revealed.
The little red girl symbolizes red enthusiasm, fiery and positive. And when we saw the little girl's body, it was even more dazzling, and a life ended like this. Life is precious, but it is ruthlessly destroyed, even for children.
People's desire for survival is as passionate as fire, but everything is in vain. So the director used a little girl in red, which caused a visual impact and caused the audience to sing. The exploration and reflection on life and belief is embodied in the dazzling red. This is the director's best technique.
It has been said that the appearance of colored paper is actually unnecessary, because a good story will not be more exciting because of color. Facts have proved that a good story, because it has a touch of red, has more visual impact and can reflect its significance in many ways.
In film and television works, we usually refer to a paragraph with causal connection and play a transitional role. Specifically, in Schindler's List, when Nazi petty officers finished their day's slaughter, they did not stop. At night, they sneaked into the apartment where Jews lived and asked doctors to search for hidden "survivors" with stethoscopes (this technique is also similar to literary "exaggeration" to show the extreme and cruelty of the Nazis).
Of course, the little girl also represents hope, but as soon as the child's body appears, everyone knows it, and hope is dashed. No one was spared in this massacre. The senseless slaughter is a trampling on life! People in the film can't choose.
But for us, it's free, so living is the best. Even if there is a storm, so what? You can solve it alive. The so-called "one day, I will ride the wind and waves, sail straight, and wade through the sea."