The writing/directing duo behind the hugely successful indie comedy Juno are set to reunite for a new film project, tentatively titled Young Adult.

Jason Reitman will direct from a script by Diablo Cody, who has been garnering huge acclaim since Juno propelled her into the public eye, having written Jennifer’s Body and episodes The United States of Tara in it’s aftermath.

Young Adult will be Reitman’s fourth feature film, and follow-up to 2009’s critically-acclaimed Up In The Air, which received three Academy Award nominations.

Charlize Theron has inked a deal to star as the ghost-writer, her first live-action role since The Road. Expect the full cast list to be revealed at a later date.

The synopsis, according to Deadline, is as follows:

A ghost-writer (Theron) of young adult novels realizes she has no identity with her pseudonym and plots to re-discover herself. Her campaign involves going back and rekindling a relationship with her high school boyfriend–who’s freshly married, is a new father, and wants no part in her life. While she works on her plan, the ghost-writer re-engages with high school acquaintances and their experiences in trying to carry out all those high school hopes and dreams that often get crushed by the realities of life.

Mandate Pictures and Indian Paintbrush will co-produce Young Adult, with filming expected to kick off in November, if all goes to plan.

Deadline had the scoop on this one.