Possibly, but not necessarily. One of the trends in movie marketing is to release a trailer (usually just on the Internet) that doesn't follow the traditional rules. They're called "red band" trailers because they often begin with a red screen containing the message that the trailer is for restricted audiences only. (Other trailers begin with a green screen saying that it's approved for all audiences).
"Superbad" generated a lot of its advance hype via its red band trailer.
