You can't go wrong with "Amour" by Michael Haneke. The way it explores the emotional and physical struggles of an elderly couple is heart-wrenching and beautifully depicts character development as they face life's challenges together. Another one to consider is "A Fantastic Woman" from Chile, which follows a transgender woman dealing with grief and societal challenges, showcasing her strength and growth in a powerful way.
If you're into character-driven stories with a unique cultural lens, have you seen "Shoplifters"? It gets into the complexities of family dynamics and the morality of their choices, pulling you into the characters' lives as they navigate their circumstances. What kind of growth do you find most compelling in these films?