"Kal Aaj Aur Kal" is a 1971 Indian film directed by Raj Kapoor. The movie features a blend of romance and family drama, showcasing the generational differences between a father and son. It highlights the evolving values and aspirations of youth in contrast to traditional beliefs. The film stars Raj Kapoor, Dimple Kapadia, and Prithviraj Kapoor, and is known for its memorable music composed by Shankar-Jaikishan. The narrative emphasizes the importance of understanding and adapting to change while respecting one's roots, making it a significant work in Indian cinema.