My my my !! Nice job, detectives !!
Seriously, i drank it like sweet juice without questionning it when i saw it... But i still think it shows the woman's strenght, may it be chronologically or not. She still performed after this specific meltdown, wether it be in Sao Paulo or Birmingham.
And yes, it's a MOVIE, and i don't recall it being presented as a documentary, which would have meant it was all truth ? Was it ? Serious question, not rethorical. And if it WAS presented as a movie, like you said, they edited parts of it as to fit a storyline, that was not present at the begining of the tour. Like a movie. It was hours and hours of filming, that had to be presented in a 2 hours max format.
Last thing : Katy has decision power in EVERYTHING she does. I seriously doubt she wasn't aware of this editing parts process.