Step 1 : Introduction to the question "Robert Duvall made his film debut portraying the mysterious Boo Radley in which 1962 film?"
...Robert Duvall made his film debut as the reclusive Arthur “Boo” Radley in the 1962 classic To Kill a Mockingbird, based on Harper Lee’s Pulitzer Prize-winning novel. Although Duvall had no spoken dialogue in the film, his haunting performance left a lasting impression. Starring Gregory Peck as Atticus Finch, the movie explored racial injustice and moral courage in Depression-era Alabama. Peck won the Academy Award for Best Actor, while Duvall went on to become a Hollywood legend, eventually winning his own Oscar for Tender Mercies in 1984.