Definitely don't listen to the 20% of professional critics who just don't get why this movie was made. More than likely they were still in elementary or junior high school and too young to understand the dynamics that were in play in the 1980's through the early 2000's.
This movie said most everything that my generation has wanted to say to every American since then. We already knew really who ran the country back then and it wasn't GW, Congress or the Senate. Did it skip over a ton of details? Yes, we would need an 8 hour movie in order to cover the multitude of sins and coverups under that regime.
Fear is what the GOP is all about to this very day. I watched the movie with a ton of people my age and even my parent's age and it was great to see the sellout crowds. If there's ONE movie that every True American needs to see...it's this one.