Haven't seen the movie, maybe someday.
I was 9. I remember a life insurance Salesman came to our farm in NH in 1962. My dad told him he didn,t need life insurance. When the the salesman asked him why he thought he didn't need life insurance. My dad's reply was "Because I'm never going to get old and die".
The salesman actually took a step backwards, stunned, then looked at my father like he was a lunatic, then looked at me with a look of dismay, and pity. He left without saying a word.
That was the instant when I knew it was all bullshit. But I still spent the next 30 years living the lie, and the next 18 trying to live MY life. I still have some baggage but have fared better than most in the same boat. Some I knew committed suicide, consumed by the monster called "Cognitive Disonance". I came very, very close myself.
I also remember walking down the street and seeing ~normal~ people, happy people, and feeling the same things she does . . many times.