Goofs

At the construction site after the car chase, Peter has tricked a pair of government agents into driving off a sheer drop. Their car drops offscreen and a moment later a giant fireball rises into frame, implying that the car struck something solid and exploded.

Soon after, Peter drives a stolen Cadillac off the same precipice and his car lands in a body of water with no sign of the exploded car or what it might have hit to make it blow up.

SPOILER:Toward the end of the film, It is established that Robin can levitate himself. Minutes later, he falls to his death. Why didn't he use his power to break his fall?

Robin is using his "powers" on a "Paratrooper" carnival ride. In a close up view, of the top of the ride, all of the neon bulbs burst. When they show a full view of the ride, the bulbs are shining brightly.

In one shot, the blue Maverick backs away to clear the brown Ford's path. Moments later, it does it again.

When Dr. Jim and Dr. Ellen are sitting down late at night to talk about what to do with Gillian, Dr Ellen's crossed legs change position inconsistently from cut to cut several times.

Woman gets run down by a current model Ford. She crashes through the windshield, which is made of plain glass. Since 1966, all cars made in the United States have safety glass in the windshield.

In the opening scene the same boy in an orange swimsuit is seen running up the beach behind Andrew Stevens and Kirk Douglas. About thirty seconds later he is seen doing the same thing. He can also be seen running further up the beach away from Stevens and Douglas. It is, in fact, a continuous shot. He's running laps up and down the shore of a very small beach. At his first turn, he can actually be seen (very briefly) making an arc to run back the other way before disappearing from view for a moment and then is seen running back the other direction.

An extra in the Lake Michigan scene (a curly-haired man in a blue Speedo) passes Gillian and her friend while walking down the same path...then can be seen again standing in the sand just past Raymond Dunwoodie, waiting for his cue to begin walking again.

As Peter Sandza descends in an elevator to meet Hester at about 1 hr 8 min, in the over-the-shoulder shot from inside the elevator, crew members to the right (disguised in black) and left (more easily visible, with at least one bare hand and face) can be seen reflected in the glass whenever the elevator passes the dark beams between floors. The other elevator passengers, meanwhile, have disappeared.

When Peter Sandza's car is chased by the police on the pier, the head of a crew member can clearly be seen on the left of the screen. The camera is moving left to right, and the technician was probably running for the traveling beside the camera.

When Dr Charles is lifted up in the air and begins to spin, the outline of a harness under the back of her dress is briefly visible.

When Hester realizes the heavy-breather she's been teasing on the phone isn't a prank call, but her lover Peter, who's in trouble and needs her help, she abruptly hangs up the phone, then scrambles up the stairs to change clothes. However, she forgot to ask him where he is. The next scene is Hester driving Peter in the VW van.