Visible crew/equipment: Near the beginning, Jo is in Beltzer's van fixing a wire. At the beginning of this shot, the camera moves down from high before she opens the door. As it's doing this, you can make out a reflection of it on the glass.
Audio problem: When Dusty is yelling for Melissa to look at the camera shot, he says "oh my God, oh my God." His mouth doesn't match up. He looks to be saying something far worse.
Continuity mistake: The sky changes multiple times when they turn onto "Bob's road", right after nearly running into Jonas' team. It goes from being very cloudy and gloomy to blue sky to cloudy and gloomy again in the space of seconds.
Continuity mistake: After Jo's truck is damaged, they switch to Bill's truck that has a cap on the bed, but the next scene shows Dorothy in an open bed of the truck. What did they do with the cap? You don't see it lying on the ground as the vehicles pull away.
Continuity mistake: During the movie theater scene all the vehicles except the bus and red truck are destroyed, but during the F-5 scenes all the vehicles are there.
Suggested correction: The vehicles remaining after the drive-in scene are Bill's red truck, Beltzer's van, Joey/Lawrence's Chevy truck, and Dusty's bus.
Continuity mistake: After the first tornado when Jo's truck is destroyed, you see Bill's truck with a shell on it. When their group is leaving the scene, the shell is gone and one of the Dorothys is in the bed. Where did the shell go?
Suggested correction: ANSWER; As some time elapses between the tornado aftermath and leaving the scene, there are plenty of reasons why the shell moved.
Visible crew/equipment: At Aunt Meg's house, Jo is taking a shower. There are two shots of her washing her hair. In the second one, the camera is blatantly reflected in the glass, left screen.
Continuity mistake: In the movie the antagonist Jonas has a vehicle fleet that includes the main vehicle, a Chevy truck, 4 black Dodge Grand Caravans, and a large recreational vehicle. At 37:15, a faraway camera shot shows the Chevy and 4 black minivans in a convoy, but the RV is nowhere to be seen. In the next shot, Bill, Melissa, and Jo arrive in the Red Dodge Ram, the RV is at the back of the convoy, and there are only 3 minivans between the RV and the Chevy at the front. (00:37:15 - 00:38:15)
Factual error: When they left Meg's house heading east towards Garfield county there are Texas county road signs.
Continuity mistake: The tornado before the one that destroys the drive-in theater rips power poles out of the ground. When Bill and Jo are arguing, we see a long shot of the road where the tornado was. The power poles are in place as if nothing happened.
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.
Visible crew/equipment: After Bill and Jo crash through the house, they plow into the cornfield chasing the twister. Dark shadows of the film truck behind them are quite visible as they close in on the roaring tornado. (01:36:27 - 01:37:15)
Visible crew/equipment: As the camera pans up to Jo on top of the van, the camera rig is reflected on the side.
Continuity mistake: When the tanker explodes in front of the red truck, they swerve and go through the blaze. Helen's window was down before the blaze, but up when they emerged. And the cracks in the windshield change, then change back.
Continuity mistake: At the beginning with Jo's team, the sky alters between cloudy and sunny in different shots.
Visible crew/equipment: When Dusty is showing off the new improved sensors, he is twisting one with his hand. The camera is blatantly visible reflected in it.
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 driving up the hill, there is a shot of Jo driving, and you can see the windshield is already cracked. In the next shot when the debris of that jumper tornado is shown the windshield is perfect.
Continuity mistake: After the chase where Jo loses her truck, her pants are wet and muddy. After the flying cow waterspouts, the pants are clean and dry.