Walnut Tree is a 2020 Iranian biographical war drama film directed by Mohammad Hossein Mahdavian and written by Ebrahim Amini and Hossein Hassani. it revolves around the Chemical bombing of Sardasht of 1987. The film screened for the first time at the 38th Fajr Film Festival and received 11 nominations. Mahdavian won a Crystal Simorgh for Best Director and Maadi won the Crystal Simorgh for Best Actor for his performance.