Advertising executives as well as film and sports fans in America are gearing themselves up for TV coverage of the Super Bowl on Sunday.
This year NSync will appear in ads for Budweiser but it's likely a number of new fim trailers will pull in the largest audience.
New trailers for Hannibal, The Mummy Returns and A Knight's Tale, with Heath Ledger and Mark Addy, are all to be shown.
Rumours that the first trailer for the Harry Potter film would air have been denied.
But Warner Brothers has bought a spot for its new film Valentine, which stars David Boreanaz of Angel.
Two years ago at the Super Bowl, ET helped sell car insurance, Halle Berry promoted M&Ms, and Cuba Gooding Jnr was on hand for Pepsi.