It wasnt working and I suddenly started focusing on one of the characters in that treatment.

I went, Well, whats it like for her now that shes recovering?

I made the story a lot smaller, more personal, and thats where the idea came from.

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How did Krause approach playing a recently-possessed person?

One of the movies I watched wasMy Own Private Idaho.

And then the possession stuff was pure fun.

Ive known Jemima since she was 12, says Galland.

I used to play in a band with her older sister, Domino.

And now shes a successful famous talent, so we all felt very lucky.

you’re free to see an exclusive clip, above.Avas Possessionsopens in cinemas and on VOD March 4.