Very disappointing. I love a movie based on a true story and this movie also had an incredible cast, so was excited to see it. That said, not sure it could have been more disappointing. Zero story arc - This movie starts out intense and stays there the entire 3 hours, so no emotional highs and lows. Additionally, it was so painfully detailed.. I thought it was never going to end. There are too many characters introduced and you're bouncing all over a 40 year timeline, which is disorienting and confusing.
Would recommend to not spend the money on the theater and wait till it's streaming, so you can pause it and take naps as needed.