Actor Kevin Spacey
Movie Usual suspecs.

Dialogue:
What is the greatest work of the devil
Answer ____________________________________

Hint: (it does not relate to me)

quote:

The greatest trick the Devil ever pulled was convincing the world he didn't exist.

-- spoken by Verbal (Spacey's character)
Source

Yes you are right. I saw the movie in bits & pieces years ago. Big coincidence that i saw the trailor of the movie just after i posted the above question. They would be showing the movie on cable on tuesday.

You should see the whole thing. It's definitely better and it's worth watching.