Revealing mistake: When the earthquake begins, a dam moves wildly, but the water underneath remains still, revealing it's a camera effect. (00:05:56)
Revealing mistake: During the jolt by the dam, the worker's table shakes, but not the rest of the stuff surrounding them, revealing that someone was moving the table underneath. (00:05:58)
Continuity mistake: When the man at the dam presses the elevator button its red light glows. Then the shot changes and it's unlit. Shot cuts back to the previous angle and it's glowing again. (00:08:04)
Revealing mistake: During the car chase (an obvious rear projection), Lew keeps turning the steering wheel around despite the car driving straight. (00:09:39)
Visible crew/equipment: A white stage light is reflected on the kettle when Stewart visits Denise at her place. (00:14:29)
Continuity mistake: When the farmer visits Mr. Adams, he's alone inside the ditch. Half a second latter a man in a brown shirt is standing next to him. (00:18:29)
Continuity mistake: When talking to the farmer, Adams drops the papers on the floor. A shot later they're back in his hands, and he's dropping them again. (00:18:32)
Continuity mistake: When the farmer asks Adams if he knows what he's doing, check the man in the background: He walks inside the ditch, then a shot later he is out and walking inside again; but then another shot afterwards he's out again and walking inside for the third time. All in a matter of 3 seconds. (00:18:40)
Continuity mistake: When Miles is talking with Sal for the first time, a cigarette suddenly appears on Sal's lips. (00:20:32 - 00:23:30)
Continuity mistake: When the bald man is punching the other guy, the pool cues on the right appear and disappear between shots. (00:27:10)
Continuity mistake: When afro gal Rosa is arguing with Miles and her brother at the motorcycle rally, she tells Miles he's crazy and walks off camera. But in the following shot she is suddenly 150 ft. Distance away. (00:42:13)
Visible crew/equipment: When Miles fails the stunt and falls, stage lights are reflected on his helmet. (00:47:21)
Revealing mistake: When the earthquake starts there are several shots of churches shaking. None of the trees next to them are shaking, revealing the camera effect. (00:52:16)
Revealing mistake: After Miles' track falls down, there's a shot of a wobbling black office building. It is a mere photograph being very obviously moved back and forth. (00:52:56)
Revealing mistake: During the earthquake, when the window-shop bursts, the airbag that breaks the windows is very, very noticeable. (00:53:13)
Revealing mistake: When Corry's bridge wobbles, the trees and objects in the background don't, revealing that someone was shaking the bridge. (00:54:10)
Continuity mistake: When the bar collapses, the drunk guy's hat is raised but a shot later it's tucked down. (00:57:30)
Continuity mistake: Before the mother is covered in glasses, she runs away, her hair covered in dust. A shot later it's clean and shiny. This is because the actress was replaced with a stunt with a wig. (00:58:50)
Continuity mistake: Officer Chavez puts his left arm around the floodgate, but a shot later his arm is away, and he is repeating the previous movements. (01:05:32)
Continuity mistake: When Sam is saving the last man in the building, he is sitting down with both hands holding the hose. From an aerial angle, half a second later, his position is completely different. (01:16:01)
Answer: There are two versions of the film. A 'film' version which does not include this scene (and others) and a 'TV Miniseries' version. The miniseries version was made to run over two nights and extra scenes were shot to extend the running time.
jle