I meant clever use of red color. Like the tail lights of car or the red poster among many many other examples. Since the title is 'red' his use of red color throughout the movie is justified and also noteworthy. But that alone is not enough to call it captivating. Because most of the shots themselves were nothing great. Unlike "Double life of veronique' where not only were the green color filters great, but also the scenes themselves were captivating. For example, how verinique sweeps the autumn leaves with her hand.