Julia Ormond, David Strathairn and Catherine O'Hara have joined the cast of HBO's Temple Grandin project says The Hollywood Reporter.

Mick Jackson is directing, and Claire Danes is starring as Grandin, one of the leading speakers on autism, whose unique experience with the disorder led her to become one of the top scientists in humane livestock handling.

Ormond is set to play Grandin's mother, while Strathairn will play her university science teacher. O'Hara will play her aunt.

Merritt Johnson and Christopher Monger wrote the screenplay. Shooting begins this month in Austin, Texas.