The One and Only Ivan is a 2020 American fantasy drama film directed by Thea Sharrock from a screenplay written by Mike White based on the 2012 children's novel of the same name by K. A. Applegate. Inspired by the true story of Ivan the gorilla, the film stars the voices of Sam Rockwell as Ivan alongside Angelina Jolie, Danny DeVito, Helen Mirren, Brooklynn Prince, Chaka Khan, Ron Funches, Phillipa Soo, and Mike White, with the human characters portrayed by Ramón Rodríguez, Ariana Greenblatt, and Bryan Cranston.