Continuity: At the airport security checkpoint, Sam drapes a garment bag over the counter, but leaves after the inspection without taking it. Next shot, though, it disappears.

Revealing: A bad matte superimposed over Cavel's rearview mirror makes McGarrett and Danno, who are actually in a car behind him, appear to be sitting in his back seat instead.

Audio problem: In the film left behind by the killers, the two men in the picture can be heard talking - but their lips aren't moving.

Revealing: The teaser contains footage of a stunt-gone-wrong. The getaway truck smashes into a mock-up police cruiser that has been secured with a chain to pull it back out of the shot. The chain breaks, and is visible trailing from the bumper as the fake cruiser starts an unplanned roll down the hill. (It went on to collide with and damage two real HPD patrol cars rented for the production).

Continuity: Danno reports that the salvage boat is "The Pacific Pearl." But when we see the vessel, the name painted on its hull is "Louise."