Continuity mistake: During the big falling debris scene, Bill Paxton and Helen Hunt are in the red truck. The truck hits a combine auger. The impact damages the windshield, and it is broken, but a second later the windshield is perfect and untouched. (01:34:00)
Continuity mistake: After leaving Aunt Meg's the first time, Jo and Bill are in the red truck. Bill says, "Ok, let's get you wired." When Jo looks over at him you can see that she already has the headphones around her neck. Then they cut to Bill and when he goes to put the headphones on her neck is bare. (00:53:20)
Continuity mistake: When Jo's truck is lifted by the first tornado they encounter, it is dropped on the road in front of the red dodge driven by Bill's fiancée. When we see the truck drop, the drivers window is closed. As the dodge swerves to avoid hitting the other truck, the window is now opened. And finally, in the last shot where everyone is running to her aide, the window is closed again. (00:34:05)
Continuity mistake: Towards the beginning of the movie when Melissa goes on the chase after they leave Meg's, she is under an umbrella with her hair dry. They cut away go back, she is drenched, cut away go back she is soaked, go back again, she is wet. (01:00:05)
Continuity mistake: When Jo's truck lands in the road, right after which Jonas' crew drives by, if you look quickly, you can see that the driver side (the truck was upside down) window is gone. Yet, when Jo goes to get her backpack out, she has to kick that window out. (00:35:25)
Continuity mistake: When they make their pit stop at the BBQ diner Bill is outside with Dusty and says, "we're going green". The sky is dark and green. When Jo comes out and they're ready to go a few minutes later, the sky is almost sunny and it's suddenly partly cloudy. (00:25:10)
Visible crew/equipment: When Bill's fiance is driving over after the first tornado, when the truck lands, she swerves and she stops. As she is getting out, a camera is visible. When the camera backs up though, a crew-member pulling it back is visible in the door.
Continuity mistake: When Bill is going over the divorce papers, he comes to the page missing Jo's signature. It only has one red arrow near top right. When he hands it to Jo, she starts looking at it, then flips up page to look at others, and the missing signature page is a completely different page with two red arrows, one toward the top and another, on the right, toward the bottom. (00:12:25)
Revealing mistake: At the start, while Jo and her parents are inside their storm cellar, Jo's father attempts to hold down the overhead cellar door during the tornado. Then, just as the F5 yanks the cellar door up along with Mr. Thornton, we can see the cable link that is attached between the actor's back and the cellar door, for this stunt. (00:04:20)
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)
Answer: Based on his scenes, he seems to be a photographer for the team. He was taking pictures of Jo, showing how Dorothy worked, and was setting up a camera when Bill and Jo were going after the F5 at the end.