That first meeting ...

Hi gang, this is sort of a sidebar to Crash's great thread. It got me to wondering. I am hoping to walk into a meeting with a production company before too long.

My question is, "How do I dress?"

I know writers are sort of the rebel contingent, and Hollywood is supposed to be laid back, but having never "been there", I don't know if that would apply to the larger companies as well. Are they more formal than we have been led to believe?

Is a suit and tie too dressy? Is a sport coat with or without a tie appropriate? If I showed up in blue jeans and a Hawaiian shirt would I get thrown out of the office? Am I the only guy that worries about such things?