In his new memoir, "Pageboy," Elliot Page reveals that he struggled with his gender identity from a very young age. He even tried to teach himself to urinate standing up when he was just four years old. Page felt uncomfortable in his body and always knew he wasn't a girl.

Even after his breakthrough role in "Juno," he turned down roles that would require him to wear feminine clothing and costumes because it made him feel suffocated. In addition to his gender identity struggles, Page also opens up about his failed attempts to have sex with a man when he was 16 and his sexual relationship with his co-star Olivia Thirlby while filming "Juno."