
Continuity mistake: After Claudia leaves the ride without her cell phone it cuts to Fin driving his car into dense fog, and in the exterior shots the Toyota's front grille emblem as well as the license plate inexplicably vanish, and then reappear.

Directed by: Anthony C. Ferrante
Starring: Tara Reid, Frankie Muniz, Ian Ziering, Cassandra Scerbo, Cassie Scerbo

Continuity mistake: After Claudia leaves the ride without her cell phone it cuts to Fin driving his car into dense fog, and in the exterior shots the Toyota's front grille emblem as well as the license plate inexplicably vanish, and then reappear.
Continuity mistake: When Fin is talking to Nova and Lucas after the fog, the cut on Nova's cheek changes sides from left to right many times throughout the scene.
Revealing mistake: During the "fognado," when Fin is lifted off the ground, his shirt is pulled up due to the harness and its cables.
Trivia: In this movie Lou Ferrigno's name is Banner. In the 70s, Ferrigno starred in the TV show 'The Incredible Hulk' as the muscular green character who morphs from the character Dr. Banner when he's angered. Note that when the sharks are dropping in Secret Service agent Banner, who's protecting the VP, says, "Don't make me angry."
Trivia: After the shark attacks the lifeguard in the pool it cuts to Nova's RV, and while Nova and Fin are watching Matt Lauer and Al Roker, notice the two Archie comics lying beside the laptop. Sharknado's director Anthony C. Ferrante collaborated with Archie Comics artist Dan Parent, and created a comic book titled "Archie vs Sharknado." It was released on the same day as this movie.
Lucas Stevens: One of my computer-modeled scenarios was a large low-pressure cell with multiple sharknadoes. If enough of them merge, the whole storm will start to rotate.
Nova Clarke: Merging sharknadoes?
Lucas Stevens: Sharkicane.
General Gottleib: Can there be such a thing?
Lucas Stevens: I could be wrong. Bio meteorology is not really an exact science yet.
May Wexler: Careful. Slow down. You got a little one in there.
April Shepard: I've done this many times before. Heh.
May Wexler: Oh, well. You had two hands then.
April Shepard: Really? Are you gonna go there?
May Wexler: I'm just saying it's okay to ask for a little help. Besides, your husband should be here. And where is he? Oh, he's probably getting eaten by another shark.
Fin Shepard: You're never gonna believe who's giving me a ride.
April Shepard: Let me guess. Nova.
Fin Shepard: Yeah, I'm with Nova. How do you know that?
April Shepard: Who else would give you ride in the middle of a sharknado?
Nova Clarke: Wifey sense. Hi, April! Still not a stripper.