Joaquin Phoenix says he “wanted out” while shooting the supposed documentary I’m Still Here, directed by his brother-in-law Casey Affleck. The movie follows Joaquin as he apparently ditches acting to launch a rap career, while sporting an enormous beard and unkempt bushy hair. In a befuddled state, he gave an infamous interview to talk show host David Letterman in which he chewed gum continuously and gave monosyllabic answers. Both Casey and Joaquin admitted earlier this month the film was a hoax. Joaquin insists it took a lot of effort to stay in character. “At some point, it became such a public spectacle,” he told Extra’s Jerry Penacoli. “There were times, honestly, where I wanted out. Even on a conventional film, I’m done after four months. But this went on and on.” Joaquin recently re-appeared on Letterman to apologize for his previous interview. “I wasn’t on the show to make a fool of him. In this film, I think the only person who comes off as a real jerk is me,” he insisted.