hbo movie about kurt cobain is hard to watch.

That's what I googled after watching about a half hour of it. That turned up an NPR piece that said:

But a new HBO documentary, Kurt Cobain: Montage of Heck, looks beyond that well-known story. It gives motion to Cobain's artwork and photographs, and spends time with his media-averse family. And it's a film that is, at times, hard to watch.

And this from The Daily News:

It surprised [the director, Brett] Morgen that [Cobain's widow Courtney] Love has viewed this hard-to-watch movie at four screenings so far....