Margaret Official Trailer (2011)

Margaret centers on a 17-year-old New York City high-school student named Lisa Cohen (Anna Paquin), who may have contributed to a bus accident in Manhattan's Upper West Side. Lisa's mother, Joan (played by Lonergan's wife, J. Smith-Cameron), is a single mom grappling with parenting and her acting career. A sexually active teen, Lisa inappropriately flirts with one of her teachers (Matt Damon) while arguing with her classmates about the Middle East. Lisa ultimately becomes involved in a legal action against the bus operator (Mark Ruffalo). The film's title comes from the Margaret in the poem "Spring and Fall: To a Young Child" by 19th century poet Gerard Manley Hopkins, briefly alluded to in one of Lisa's classrooms.