片名：【衝擊教室 / 我的左派老師 / 我的毒蟲老師/ Half Nelson】
北美上映日期：2006/08/11 (限定地區)
國別：美國
類型：劇情
導演：Ryan Fleck
編劇：Anna Boden、Ryan Fleck
演員：雷恩葛斯林 Ryan Gosling (手札情緣)、Shareeka Epps、Anthony Mackie。
發行公司：思考
製片預算 / 全美票房：70萬 / 268萬
劇情簡介：
一段難忘的情誼，發生在一名白人中學老師，他的黑人學生及一名當地毒梟三人之間。丹杜恩(萊恩葛斯林)是一名在貧民區任教的年輕中學教師，面對現實的壓力讓他不得不放棄理想與熱忱，在日復一日的任教生涯中，他意外發現對一名13歲女學生的開導重新燃起他對教育的熱情，他全面摒棄填鴨式的教學方法，採用更為大膽實際的作風，教育他的學生如何改變命運擠身上流社會，無論運用歷史觀點或是根據個人因材施教，並諄諄教誨他們要為未來多設想。雖然丹在課堂上聰明、機智足為表率，但私底下的他卻在清醒與恍惚中掙扎，鋌而走險靠毒品麻醉自己，使他的人格嚴重分裂，直到他一名問題學生杜瑞兒發現了他的惡習，兩個面臨人生交叉口的靈魂一拍即合，而成就了一段忘年情誼。
Dan Dunne (Ryan Gosling) is an eighth-grade history teacher in an inner-city school deep in the heart of Brooklyn. He eschews the provided curriculum in favor of off-the-cuff, but deeply heartfelt lectures about the importance of understanding history, rather than just memorizing it. He speaks primarily of dialectics, the tensions between two opposing forces. He is torn between his desire to change the world and his increasingly desperate realization that he can’t, at least not in the grand, awe-inspiring ways that he envisioned as an eager, idealistic college student.
He started using drugs as a way to escape the pain of life, and it has turned into a crutch that bears increasingly heavy loads of psychological weight. In his classroom, which is populated almost entirely by black and Hispanic students, Dan lectures about how the world is structured into opposing forces, illustrating it at one point by arm-wrestling one of his students. His unorthodox approach inspires them during class, but interestingly enough we don’t see its effects outside the classroom.
The film focuses on Dan and his relationship with Drey (Shareeka Epps), a 13-year-old student of his who catches him in the bathroom smoking crack after school one day. Drey understands Dan’s frustrations with life; she is the child of an overworked single mother whom she barely sees, and spending so much time on her own has made her self-reliant, but also hard on the edges.