This paper delves deeply into the changes in contemporary film color aesthetics and their close connection with emotional expression. By analyzing the characteristics of color application in film works of different periods, this paper reveals how color aesthetics evolve with the development of The Times and focuses on elaborating its key role in the emotional communication of films. Starting from the basic theories of color and combining with specific film cases, this comprehensively showcases the unique charm of the interweaving of color aesthetics and emotional expression in contemporary films, providing new perspectives and ideas for understanding film art.