John Malkovich had a problem in In The Line Of Fire.

It wasn't his lunacy. Nor was it that girl who knew he was lying about where he came from, sealing her own fate.

No, Malkovich's problem was that he just couldn't keep his mouth shut. Giving Clint a series of clues may have made 'the game' more interesting, but Edward Fox wouldn't have been so stupid. And so Malkovich was always doomed to fail.