I am sorry but Brittany Murphy was not some great talent. She was a very good young comedic actress, and an attractive one at that, that Hollywood chewed up and spat out at a young age, as Hollywood has done 10,000 times.
We know how she died. She had lethal or close to lethal amount of prescription hydrocodone exacerbated by antihistamines, which can double the effect of hydrocodone. In fact persons addicted to hydrocode take antihistamines at the same time to double the opioid effect of the drug. Hydrocodone has gone from class III to class II in the US and been banned in much of Europe. Her friends had noticed that she was exhibiting a drug habit several years before this with severe loss of weight, slurring speech etc.
This woman's story is she was VERY talented. After age 30, when Hollywood tosses out most talented your women actresses, she ended up like most -- severely declining film and TV offers. All evidence is she turned to prescription opioids.
This film decides to use the techniques of the cowardly makers, rather than make direct assertions of every stupid conspiracy theory, dodge responsibility and have anonymous persons, YouTube nuts and gossip mavens make the lurid and conspiracy theory based claims. That is a cheap shot and a cowardly one at that.
Do yourself a favor and stream one of this talented person's works. That is their legacy. Their legacy is not the nonsense in this exploitive "documentary."