There is also 'My Sister's Keeper'. This movie tells a complex story about a sister who was born to be a donor for her ill sister. It explores family relationships, self - discovery, and the meaning of sisterhood in a very emotional and thought - provoking way.
Another one could be 'Sisterhood of the Traveling Pants'. The four best friends who are like sisters share a pair of magical pants while they are apart during the summer. It's about their individual growth, relationships, and the strong connection between them.