This essay explores lifespan development through the lens of the film 'The Curious Case of Benjamin Button,' which portrays a character who ages in reverse. The analysis examines Benjamin's physical, psychological, and social changes, comparing his experiences to established developmental theories such as Piaget's Cognitive Developmental Stage, Ainsworth's Theory of Attachment, Vygotsky's Zone of Proximal Development, Freud’s Psychosexual Development, Levinson's Theory of Male Development, Erikson's Theory of Psychosocial Development, and Bowlby's Stages of Grief. Despite the reversed aging process, Benjamin's developmental stages align with typical human development, demonstrating that he learns, matures, and adapts to social conventions, showcasing the universality of lifespan development principles. The essay references various psychological studies and theories to support its analysis, highlighting the protagonist's journey through infancy, childhood, adolescence, and adulthood, and the challenges and adaptations he faces at each stage. This assignment solution is available on Desklib, a platform offering a wealth of academic resources, including past papers and solved assignments, to support students in their studies.