Continuity mistake: When Bill and Jo are in the yellow pick-up going after the first tornado, there is a yellow raincoat with a visible metal snap hanging from a hook mounted on the rear window directly behind Jo. As the scene progresses, it moves to a position higher up and off the window when Jo says, "We're moving to intercept, guys. Get ready to set up." Then Bill gets off the road and down into the ditch, right before Bill says, "Are we having fun yet?" the raincoat is back hanging from the hook on the window behind Jo in a different position (no snap visible).Sheri Hartman
Continuity mistake: When Bill, Jo, and Bill's therapist fiancée are in Bill's red truck and about to be engulfed in the tornado where the cows are flying around, the fiancée's cell phone is ringing for about the fifth time in as many minutes. The fiancée answers the phone with a disgusted look on her face like she resents having to answer the phone during such a dangerous time. Obviously the call is deliberate 'comic relief', even though they were so close to the tornado and about to be engulfed, but the real problem is in reality she would not have been able to hear it ring amongst the grand noise of all the wind.
Continuity mistake: At the roadside restaurant, when Bill first sees Jonas' version of Dorothy, we see it from Bill's perspective. You can see that the panels in DOT's top are open. In the next shot, Jonas is discussing DOT with the press and the top is closed then opens as he describes the sensors. (00:20:25)Guy
Continuity mistake: Towards the end of the film when they are preparing Dorothy 4, the twister behind them is about 5 metres away. Then it it much further back the next time we see it.
Continuity mistake: Near the beginning, when Bill and Melissa have gone to get the divorce papers, Bill leaves Melissa talking to Dusty. When Dusty starts telling her about the "suck zone" there are a couple of black cows behind Dusty. Next, Jo comes over to meet Melissa and when the camera pans to the same area behind Dusty, there are no cows. (00:12:50)Sheri Hartman
Continuity mistake: When Jo, Melissa and Bill are in his car, they see Jonas wave from his car. Just before this had happened, Jonas looked in his rear view mirror. He only saw a red car with a background of a paved street. Where is the rest of Jo and Bill's crew?
Continuity mistake: When Dusty tries to get Melissa to watch a tornado through a camera, the way she holds her umbrella changes between cuts. Sometimes it's on her left shoulder, sometimes it's on her right.
Continuity mistake: When Dusty watches a tornado through a camera, the way he holds the camera changes between cuts.
Continuity mistake: At the beginning with Jo's team, the sky alters between cloudy and sunny in different shots.
Continuity mistake: When the steak gets placed on Melissa's plate the 1st time at Aunt Megs, it is well done and pointing in 1 direction. When Dusty slips it's a totally different steak pointing in the opposite direction.
Continuity mistake: When Bill and Jo are in the truck, Jo looks at the dashboard, which is shown, and then Jo looks away and covers her eyes. Bill then floors the gas, and the dashboard is shown, and this time, the airbag light is on, unlike the previous shot of the dashboard two seconds earlier.
Continuity mistake: During a scene in the middle they drive the red Dodge solo into the hills to face a twister. As they bail out they find that they can't free the "Dorothy" from the back of the truck, so they have to run for it. As they look back they watch power poles start blowing up. Finally the one next to the truck goes and falls across the bed of the truck, smashing Dorothy onto the roadway and spilling the sensors. As they come back to the truck, because the twister has disappeared, they realise the twister is "jumping" and pile into the truck for their escape. The power pole is no longer resting across the truck and there is no damage to the bed.