Blagojevich and Batman?

Our former governor has been cracking wise on the David Letterman show, comparing his profane language, caught on tape secretly by the feds, to Christian Bale's obscene tirade that's getting a lot of air time Tuesday.

Bale is best known for playing Batman, but he lost it during the filming of "Terminator 4." You can listen to Bale's on-set spewings here, but be warned that it's quite intense and filled with obscenities.

During the interview to air tonight, Letterman plays one of the secretly made recordings of the governor -- one which appears to capture him trying to shake down a contribution in return for favorable legislation, one of the four previously played for state lawmakers.

"I was afraid you were going to have some of those other tapes where I sounded like Christian Bale..." Blagojevich cracks, and the audience laughs, according to a transcript of the interview

It sounds like a funny line from our former governor. He's on Letterman for about 30 minutes, but why would he want to compare himself to Bale?

Many people, for instance, have questioned our former governor's sanity -- or at least stability.

And on the tape, Bale sounds none too stable himself.

The former governor was recorded trying to get people fired who had disrupted his schemes.

And Bale is recorded threatening to get an employee on the film set fired who had disrupted his concentration.

The governor has been criminally charged.

And Bale has had his own brush with the law.

Come to think of it, given the similariites, maybe the comparison was even better than our former governor first realized.

Might there be a role for Bale in "Blago: The Movie"?

Well, he's certainly got the cussing down.