Jason Bateman and Allison Janney have signed on to co-star in the comedy, Juno for Mandate Pictures and Fox Searchlight.

Jason Reitman is directing the film that stars Jennifer Garner and Michael Cera in the coming-of-age story; based on a script from writer Diablo Cody, Ellen Page stars as Juno, a high school girl confronted with a teenage pregnancy, notes The Hollywood Reporter.

Bateman will play the emotionally stunted husband of Garner; the couple is interested in adopting Juno's unborn child. Janney will play Juno's stepmother; Cera will play Juno's loyal best friend and the one responsible for her pregnancy.

Juno is currently shooting in Vancouver.