I'm familiar with almost all of them and while I have some differences with the above I agree for the most part. Missing item that kinda falls into the trope but then again doesn’t is "Fargo", which announces at the start of the ending credits,
"THIS IS A TRUE STORY. The events depicted in this film took place in Minnesota in 1987. At the request of the survivors, the names have been changed. Out of respect for the dead, the rest has been told exactly as it occurred."
In fact the story is as complete a fiction as could be. Some try to relate it to a case in Connecticut that involved a man disposing of his wife's body using a wood chipper, but that's a real stretch. The Coen brothers admit that they weren't entirely honest with that statement in the credits but say that
"If an audience believes that something's based on a real event, it gives you permission to do things they might otherwise not accept."
Wish I had thought of that during one of the many times when I was in deep doo-doo as a young troublemaker!