Some works will outright lie about it. For example, the TV show and movie Fargo specifically tell you it’s a true story, and even that names have been changed but ‘the rest has been told exactly as it happened’.

To me that’s weird. It doesn’t really add to the end result in my opinion, but would breed distrust when people discovered it was wholly fictional.

Still, even with things that are meant to be accurate portrayal of an event, it’s always good to check the facts. Hollywood just can’t help but fiddle with reality to tell a more interesting story, even when it doesn’t need it.