THE Oscar-nominated star of "Juno" and "The Umbrella Academy," formerly known as Ellen Page, has revealed that he was a transgender person and had changed his first name to Elliot. "I can't begin to express how remarkable it feels to finally love who I am enough to pursue my authentic self," Page wrote on Instagram. "I love that I am trans. And I love that I am queer." Page, 33, was nominated for an Academy Award for playing a pregnant teenager in 2007 film "Juno" and starred in other movies including 2010 sci-fi thriller "Inception." The actor currently appears in…