In 'Queen of Katwe,' Lupita Nyong'o stars as Harriet Mutesi, the mother of a young Ugandan chess prodigy. The film is based on the true story of Phiona Mutesi, who rises from poverty to become a chess champion. Nyong'o's performance as a determined and supportive mother showcases her ability to bring depth and emotion to her characters. 'Queen of Katwe' is an inspiring and heartwarming tale of resilience and the power of dreams.