Hindsight's a bitch - it's easy to wonder how different things would be if Hitler got more hugs or someone said "No Jamie Lynn, not without a condom."

But someone who has no time for hindsight is Jack Nicholson. Though it's natural for people close to Heath Ledger to ask themselves if they could have done anything differently to stop his death, Jack Nicholson doesn't have to.

That's because Jack Nicholson says he warned Heath Ledger about taking sleeping pills. And if things are bad enough for Jack Nicholson to warn you about stuff...