Braveheart
This movie tells the story of William Wallace, a Scottish knight who became one of the main leaders in the Wars of Scottish Independence. While the movie has been criticized for historical inaccuracies, it does have plenty of factual elements.
JFK
This movie shows the story of Jim Garrison, a real New Orleans district attorney who filed charges saying that Clay Shaw was behind the assassination of John F. Kennedy. Through the court case, the movie goes more into depth on the mysteries surrounding the famous assassination.