I watched Joy last night. The Twentieth Century Fox film is based on the true story of Joy Mangano. In the movie, Joy invents the self-wringing Miracle Mop. The film is about the struggles Joy went through to develop and market her revolutionary mop. I liked the movie — mainly because Jennifer Lawrence was good in the film. Plus I enjoy movies based on true stories. Joy is available now in Blu-ray, 4K Ultra HD, DVD and Digital HD. Note: Joy is rated PG-13 for brief strong language.