I love THE INSIDER, but its not underrated. Hell, it scored many Oscar nods for Mann and Russell Crowe back in 1999. Maybe it could have won them, but its not underrated.
I used to call HEAT underrated as well, but 11 years later, there is a general feeling for film buffs that this movie rocks in the crime genre, and that most people like it. Underrated? Not anymore.
Now THIRTEEN DAYS is underrated. An $80 million major dud for New Line Cinema, its a compelling 150 minute docu-drama, at perhaps the best of such historical storytelling, of one of the most dangerous series of days in American history. The fact that we already know the outcome, and yet the movie is still compelling, does tell you the power of it. While most critics were positive in its release, the movie was slammed by people who bitched that it was historically inaccurate, and that (I might add many in the conservative right) many complained that it was biased against the military and towards the administration of that time. Nevermind that Curtis LeMay was, well, one of the more "interesting" people people we've had command in the military.