One modern movie that stands out for its exploration of complex themes is "Arrival" (2016), directed by Denis Villeneuve. The film delves into themes such as communication, time, memory, and the nature of humanity. It explores how language shapes our understanding of the world and the importance of empathy and understanding in communication. Additionally, "Arrival" addresses themes of grief, loss, and the choices we make in the face of uncertainty. The film's thought-provoking narrative and philosophical undertones make it a standout example of modern cinema exploring complex themes.