Goofs

(at around 16 mins) When first seen on the front of the bus, Bret Michaels is holding his Dean "Sharkslayer" guitar but this inexplicably switches to a different guitar with a narrow Flying V headstock.

(at around 1h 27 mins) When Dolph Lundgren's character removes the shark fin helmet, his hood is partially pulled back in the process. The next scene shows his hood completely up over his head.

The Smart cars keep changing model, from the 450 coupe, to the 451 coupe and back.

(at around 15 mins) One of the characters states "London Bridge is falling down", however, the bridge that was falling down was in fact Tower Bridge, which is often mistaken for London Bridge.

(at around 1h 21 mins) The German word "ausgelastet" (busy, working to capacity) in the Tele5 breaking news line is written as "Asgelastet".

(at around 19 mins) A newscaster describes the possibility of the sharknado striking Buckingham Palace as a blow to the British Empire. The British Empire ceased to exist in 1980 when its last colony, Southern Rhodesia gained independence and became Zimbabwe. At this point it became known as the British Commonwealth.

(at around 15 mins) The double-decker bus they drive in London is not a British one. It has the entrance on the right side for right hand driving traffic.

(at around 56 mins) When Fin and April's Smart car lands in Rome it smashes through a stone wall with no damage to the car.

When in London, Nova states that one of the Sharknadoes is headed for --Big Ben. "Big Ben" refers only to the large bell in the famous Westminster clock tower. It is not the name of the area (which is the 'City of Westminster') nor the clock tower (which is currently called the 'Elizabeth Tower'). This is an extremely common belief among people who don't live in the U.K. or don't know the actual fact.

In reality, Sydney's Opera House doesn't have a defence system and the famous London Eye (ferris wheel) doesn't have a hidden weapon. This is all just played for laughs and sci-fi depiction.

Throughout the franchise, the CGI is poor. [It has been explained by the filmmakers that viewing it requires a strong 'suspension of disbelief']

Sharks are highly 'demonized' in this film series. Yet, in one scene, they barely want to attack Fin, April and Nova when they're in the middle of the water.

A few times, the characters Fin, April and Nova go into a sharknadoes to get into a vortex, that is an extremely risky thing to do, the storms cause many fatalities.