'Romeo & Juliet' star Claire Danes is in negotiations to star in a HBO biopic about the autistic scientist Temple Grandin.

Mick Jackson, whose credits include 'The Bodyguard' and the TV series 'Traffic', is set to direct the film, from a script by Christopher Monger.

Grandin, a leading speaker on autism, is an authority in the field of humane livestock handling.

She was previously the subject of the BBC documentary 'The Woman Who Thinks Like a Cow.'