Irish director Gerard Barrett's next nets Chloe Moretz

The Irish director of Glassland, Gerard Barrett, has been looking for a new castmember for Brain on Fire and he's found his Hit Girl

Irish director Gerard Barrett financed his first film Pilgrim Hill with a Credit Union loan of a couple of grand back in 2013. Now he's making a film with Charlize Theron and had just cast Chloe Grace Moretz. That's a hell of a career trajectory.

The new movie is called Brain on Fire and Barrett was sought out by Theron who owns the rights to Susannah Cahalan's 2012 book. It's a true story about what happened when the author fell ill with a mysterious illness which caused her to become violent and lose large amounts of time, and her path through ineffective medical treatment and beyond.

Moretz will play the part of Cahalan through this ordeal - the young woman was just 24 when she was struck down and beginning a career as a reporter with the New York Post.

It seems the production is skewing a little younger than that - Dakota Fanning (who is 21) was originally in place but has moved onto another project, leaving the part open for 18 year old Moretz. But she's got the range to play older and the skills to take on something this challenging.

It's a great move for Barrett who also wrote the adaptation and will see him being thrust even further onto the international stage.

Brain on Fire hasn't started shooting yet, expect it in cinemas in 2016.

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