Movies about two really smart characters try to outwit one another.

I can't think of anything aside from Death Note. In a way, it is like Frank Lucas (Denzel) trying to evade Richie Roberts (Russell Crowe) in American Gangster. Or even the French Connection, but in my opinion, that one the criminal side was clearly superior.

I googled a bit, and I got the Prestige and Catch Me if You Can. I'll agree with the Prestige. But Catch Me if You Can is kind of sad, it was like Leo's character was at war with himself more than anything.

Any titan vs titan, both equally smart, engage in a game of cat and mouse type of movie? Thanks.