Juno is a 2007 Canadian-American comedy-drama film directed by Jason Reitman and written by Diablo Cody. Ellen Page stars as the title character, an independent-minded teenager confronting an unplanned pregnancy and the subsequent events that put pressures of adult life onto her. Michael Cera, Olivia Thirlby, J.K. Simmons, Allison Janney, Jennifer Garner, and Jason Bateman also star. Filming spanned from early February to March 2007 in Vancouver, British Columbia. The film premiered on September 8 at the 2007 Toronto International Film Festival, receiving a standing ovation.