the opening monologue makes hollywood even more untrustworthy

Sure, lots of movies make the claim "based on actual events", but usually the overall story is still true and it's just bits and pieces that are tinkered with, and perhaps the timeline is condensed and maybe multiple characters are combined into one or two characters so that the story can be told in 2 hours etc. Still, there is usually some truth in there somewhere.

But how can a movie get away with claiming right off the bat, and not just in an opening text of "based on actual events", but instead to have the main actress speak directly to the audience and tell everyone that this is based on actual events AND real footage from the actual events have been included AND etc... and then absolutely NONE of it is true. it is entirely fictional from start to finish.

Just how dishonest can filmmakers be and still get away with it? I was furious when i found out this was fake after watching it. Why did the filmmakers feel it was necessary to deceive its audience in such a way and how can hollywood be trusted at all from now on?