I thought the movie was quite good, but I think it was easier for me to follow, because I already knew the characters (and also knew their fate), for someone who doesn't it might be tricky to follow a dozen stories at the same time. I've seen the IMAX Everest documentary from 1996 before and real footage is of course better, but the story was rather faithful to the facts we know (omitting most of the other people on the mountain that time). Worth watching.
When reading some of the critics I noticed Jon Krakauer's comment that the movie was bad and that people should read his book "Into thin air" to find out what really happened. (It's nowadays somewhat a classic about mountaineering catastrophes.) I'd noticed the local library actually has it here in English, so of course I borrowed it. I've read Anatoli Boukreev's "Climb" already in NZ, but for some weird reason I hadn't read the Krakauer book before. It was great, and in some parts it's still haunting me. I don't have any urge to go mountain climbing myself, but I love to read such stories where the survival is often hanging on a very thin line. (I don't have any ambition whatsoever for anything, so maybe that's the reason why I like to read about people who do.) All in all, I think the Everest catastrophe in 1996 shows once again that the true stories can often be more heart-braking than the fictional ones...

The poster for the movie Everest. (Pic: Universal Pictures)