Okay, let me commit some blasphemy by spoiling the ending: this is the true story of Christine Chubbuck, the 1970s TV reporter who committed suicide on live TV. I spoiled it, because this is not about that ending. It's about a person, whose opening scenes do not offer any forewarning of such a tragic ending, but by the end of the movie, you say: "Oh, of course she would commit suicide". And that plausibility arc solely rests on Rebecca Hall's powerful performance. This is her movie, and I hope this coming Tuesday, she's nominated for an Oscar for it.