Secrets & Lies (1996)

Hortense Cumberbatch, an optometrist, is on a quest to discover her biological roots after the death of her adoptive mother. She meets Cynthia Rose Purley, a hard-working woman struggling with her own personal demons. At the same time, her daughter, Roxanne, holds a crucial secret that could change their lives. This film by Mike Leigh, a director with a keen taste for improvisation, won the Palme d'Or at the Cannes Film Festival and was nominated in multiple categories at the Oscars.