Continuity mistake: As Kono talks to Johnny Kalama in the students' apartment, an orange lava lamp sits on the shelf between them. Each time the camera angle reverses, the wax bubbles in the lamp are very noticeably in different positions and configurations.
Continuity mistake: The HPD snipers watch McGarrett's office window, trying to get a clear shot at Collins. In camera views from inside the office, there's a coat rack with a hanger on it standing in front of the window. But in all the shots from the snipers' POV, the coat rack isn't there.
Continuity mistake: McGarrett strong-arms Tommy-Tommy, the Hawaiian fence, on the beach, and the guy gets sand all over his face during their scuffle. When McGarrett pulls him to his feet, the sand is still there. But in the next shot, all but a small patch near his temple has disappeared.
Continuity mistake: Auston leaves the unconscious Dan Williams lying on his back. But in the next shot, Danno's lying on his side. Later, the seriously wounded Danno instantly changes positions between shots several more times, switching from face down to face up on the floor.
00:02:30 - 00:32:00Jean G
Continuity mistake: Danno, posing as a photographer on the beach, snaps the shutter at a bikini-clad girl and quips, "I only wish I had some film." Seconds later, he takes a picture of the suspects that's then used to identify them. The scene is continuous, and at no time did he ever load film into the empty camera, nor did he have another one.
Continuity mistake: There's much too abrupt a transition between Reese falling into the water and his body suddenly being back on the dock. As there's no time lapse implied at all, he seems to reappear on shore by magic. At least a brief shot of the body being fished out of the water might have helped.
Continuity mistake: Danno walks several feet into McGarrett's office to make a report. Though there's no break in the dialogue and no time for him to have moved, the shot cuts and he's suddenly standing outside the door as they finish their conversation.
Continuity mistake: During the stand-off, Big Chicken is standing several inches to McGarrett's left, on the other side of a seam in the concrete wall. When the shot cuts to a closer angle, Chicken is instantly close enough to touch shoulders with McGarrett, and is now blocking the concrete seam.