BBC iPlayer film

I enjoyed it- but watched on BBC after the snooker. I thought it was great! A few familiar faces like Tom Hollander and some others I can't name. Great story and I loved the ending!

I started to watch it but gave up after a while. Somehow I just didn't take to it. Maybe I just wasn't in the mood for that sort of thing.
I read that it was Harvey Weinstein's last production.

Who else was in it? What was the theme? Managed to see her on stage once. Fantastic but a v strange play. Can’t remember the name.