What Movies Do You Think Were Great But Didn't Get Recognition Deserved?

What movies do you think were vastly underrated by critics and the awards bodies? (Oscars, etc.) at the time they were released? And not just critics, but films that might have flopped or underperformed with the public as well.

The only rule I have is

1) The movie needs to have been a box office release and not indie (not that there's anything wrong with indie films, but by their very nature they often fly under the radar).

My nomination is the film "Heat" (1995) directed by Michael Mann. It starred Pacino, DeNiro, Val Kilmer, Tom Sizemore, and Ashley Judd. It even had Wes Studi and Jon Voight in it.

Even though it was more of a crime drama and not an action movie, the shootout scenes were some of the very best ever done in Hollywood. In fact, it was so good that Police departments actually use the shootout scenes for training. And the British military shows the shootout scene to their troops during infantry training. In my opinion it was the greatest shootout scene in film history (up to that time). It was realistic in tactics, the shooting was realistic and even the sound was realistic.

"Heat" did not flop, but considering its all-star cast, it was not a success either. It's opening weekend it did pretty well at #3. But it finished the 1995 year being the #25 grossing film. It won no awards and wasn't nominated for any. It did receive some positive reviews from professional critics at the time, but nothing notable.

Does anyone else agree that "Heat" was underrated?