Turnbull & Plawrence, dont bother replying, I know your answer : "True Confessions" (1981)

My pick is "Sweet Smell of Success" (1957) - I just cant believe the lack of recognition when it comes to this masterpiece. I cant remember it being mentioned even once in this forum.

What in your opinion is the most underrated film of all time?

"Come out and take it, you dirty, yellow-bellied rat, or I'll give it to you through the door!"

- James Cagney in "Taxi!" (1932)