When she was five, Kristin Scott Thomas’s father, a military pilot, died in a training accident. Her mother would remarry—another pilot—and he too was killed; Thomas was 11. A father and a stepfather, both gone in six years. In My Mother’s Wedding, Thomas brings this story to the screen, but with some fictionalized elements. The film centers on three sisters—the emotionally reserved eldest (Scarlett Johansson), the unpredictable middle child (Sienna Miller), and the youngest, who attempts to hold it all together (Emily Beecham). Many years have passed and when the three return home for their mother’s third wedding, each sister is dysfunctional in her own distinct, often amusing way. My Mother’s Wedding was co-written by Thomas, and it marks her debut as a director. If that weren’t enough, she plays the mother, and in the role delivers a sweeping monologue about love and loss. —Elena Clavarino