What are some of the most historically accurate movies ever made?

There are many claims that a movie is historically accurate, but most of the time they aren’t.<br><br>It’s clear that movies like Gladiator or 300 aren’t historically accurate, but I want to know about the ones which are.<br><br>I’m going by simple Wikipedia information here, which claims that movies as Downfall are historically accurate. <br><br>So what are some of the most historically accurate movies ever made, and why are they historically accurate?<br><br>&#x200B;<br><br>edit: I know that you can’t make a 100% historically accurate movie, and the amount of accuracy can differ in a movie. The reason I put “ever made” is so people don’t say “top 10 most historically accurate movies” or something like that.