《胎记》是由清华大学美术学院艺术设计专业学生研一学生郗昱尘指导的校园剧情短片，拍摄完成于清华大学艺术团影视社2017年寒训阶段。作为一部校园剧情短片，胎记全程以一位脸部有胎记的女学生的视角，讲述了在其情感生活中，这胎记和她内心对爱情渴望的博弈过程。全片情感细腻，将经典诗歌和许多文学作品的文字穿插作品之中，很好地把情节和情感节奏把握住。作为学生作品，本片参考学习了电影荒野生存的剪辑手法，微电影口吃的影片结构以及电影七月与安生的细腻表达，脱离了传统校园爱情故事的俗套，安静唯美，试图在感观和心理层面追求更多人的接纳。

Birthmark is a short campus feature film directed by Yuchen Chi, a first-year graduate student majoring in arts and design from the Academy of Arts & Design, Tsinghua University. The filming was finished during the winter training of Tsinghua University Art Troupe Film and Television Community in 2017. As a short campus feature film, Birthmark takes the perspective of a school girl who has a birthmark on her face. The film is about the struggle between her birthmark and her desire for love during her love life. The whole film is exquisite in emotion, and interludes classic poems and many texts from literature works, which perfectly keeps the rhythm of the plot and emotion. As a student works, this film takes the clipping of Into the Wild, the structure of Stutter, a microfilm, and the exquisite expression of Soulmate for reference, and gets rid of the stereotype of traditional campus love stories. It is quiet and beautiful, and trying to seek for more acceptance in sensory and psychological level.