I liked the movie until... **SPOILERS**
The ending ruined it for me.
Her death scene was a cheap manipulation for shock and emotion. We had been told repeatedly that she was going to live. We are supposed to be able to trust our narrator. There was no reason for him to lie, exposition wise, it just didn't make sense. Once he broke our trust, he is an unreliable narrator. I was supposed to feel sadness and shock when it happened. I was just ticked and irritated. Really cheap trick.
Also, that scene wasn't very well done at all. As an audience member, I felt no connection to this video reveal that had been building throughout the movie. She was visibly moved, but why? There's a disconnect. Then she dies and it just happens to be while she's watching the video. How conveniently emotionally heart wrenching!
Bummer, I really liked the movie up until her death scene.
Still, I liked the Earl character a lot. And Ron Swanson.