Big

Have you ever had a really big secret?

Big (1988) follows a suburban teenager who is magically transformed into an adult overnight and must navigate New York City on his own. As he secures a job at a toy company and forms a romantic relationship with a co-worker, his childlike instincts both charm and complicate his new life. This fantasy comedy blends wish-fulfillment and emotional maturation in a story of innocence confronting adulthood.