Val Kilmer says more than "I'm Sorry" just before he turns around to put the door back up after he breaks it down when he goes to see Nicole Kidman at her office. But they edited it out and you can't tell what he says.
I don't that he was still talking at this part. I think he was trying to think of something to say and couldn't.He didn't really move his lips....he just pursed them up. But you really can't tell. Who knows.