Simon Monjack's Family Pissed Over Brittany Murphy Documentary - TMZ

James said he and his mother -- who was also interviewed -- had hoped the series would lead to a breakthrough in what actually killed Simon and Brittany, but made it seem more like Simon led to her death.

While James says he was able to watch the entire thing, his mom won't ...

and she too is upset that all it really did was point fingers at Simon.