Factual error: Johnny's dad and gang come to over protection services to Moon and the singers. Despite almost no time having passed since the first Sing movie, as evidenced by Rosita's children having not aged, the gang appear to have been released from prison. The gang were in for armed robbery and at least one case of escaping prison. The minimum terms for those charges would keep them in prison for years.
Factual error: The "Great Terror" turns out to be a giant goose, but you see in the shot inside the castle that its footprint is not webbed, even though geese have webbed feet.
Factual error: Milo says Audrey is a "teenager". Which she is, but this is 1914! People didn't use that word back then. He probably should have said "adolescent" or something.
Factual error: While Ferdinand and the bulls are running free in Madrid they pass by the Puerta de Alcalá monument with a set of three columns and a door in the middle. The drawing is actually missing two huge blocks with 2 doors on each side.
Factual error: The unit on Dusty's torque dial appears as FT/LB (i.e., FT divided by LB) which is incorrect. FT.LB (i.e., FT times LB) is a unit of torque.
Factual error: The police are circling the theatre to find out where Johnny's escaped father is. During this, you can see that Mike is getting pulled upwards towards the copters like a piece of metal getting attracted to a magnet. Helicopters create downdrafts - Mike should've been blown away from the stage rather than being pulled up.
Factual error: With a number of flowers blooming, the movie appears take place in spring. There are many scenes of central park with flowering trees and shrubs in full bloom. However, the yellow blooming shrubs called forsythia do not bloom at the same time as the flowering cherry trees. Forsythias bloom about a month earlier than cherries and are usually the first items to bloom in spring.
Factual error: The alligator mentions wanting a Bananas Foster. This dessert was invented in 1951 but this movie takes place in 1926.
Factual error: In the timelapse footage showing the street outside Bob's Restaurant, the shadows are moving in the wrong direction. In the northern hemisphere, shadows go clockwise. (00:13:46)
Factual error: During the bike chase towards the end, as Cloud and Loz/Yazoo crash through the security gate, you can see that the lettering is misspelled: "Authorized Parsonnel Only." It should read "Authorized Personnel Only."
Factual error: SpongeBob and Plankton are told to supervise the universe for Bubbles while he goes on a bathroom break. This results in Jupiter and Saturn colliding with each other. Saturn is depicted as much smaller in relation to Jupiter than it is in reality. Also, the effect of their collision is inaccurate since both planets are mainly made up of gas. (00:44:50)
Factual error: When Tripp enters the garage and we see his truck in progress, he states that the truck will have 425 horsepower. The Hemi pulled out of the Terravex truck is not a 6.4L Hemi (only a 5.7L Hemi) and even if it was a 6.4, they only produced 410 horsepower in the heavy duty trucks. The 5.7L Hemi makes 375 horsepower in the trucks and 390 horsepower in the cars.
Factual error: Speed radar guns work by measuring the speed of an object that is either approaching or moving away from it. So when it shows Sonic running across, the beam giving the measurement wouldn't work, and he would have barely even registered on the device. (00:04:44)
Factual error: Robert and Giselle have their belongings shipped to their new home at "18 Honey Bee Trail, Monroeville NY 10960." Monroeville is fictitious but the 10960 ZIP Code belongs to Nyack, New York. (00:00:04)
Factual error: When the super-scrambled monster is destroying the town, everything it destroys falls down completely, despite the fact the monster only hits one side of it. (01:00:15 - 01:04:40)
Factual error: Dewey corners the gang in the wrecked Mystery Machine and pulls out his duster, which a blade pops out of. There is no way that blade could have fit in the duster. The blade is much thicker than the handle of the duster, and it is longer than the handle and the feathers combined. (01:04:55)
Factual error: The Joes chase Cobra into the snowy mountains and attack inside the weird cave. One of the Joe's vehicles splits to a driving section, and Road Block flying up in a little fighter. Road Block is holding a large rifle with both hands, yet the fighter goes up and turns around and begins flying at his control but he never touches a steering wheel or anything. Just his big gun. And he does not speak so no voice commands are given. How is he flying with no hands? (00:19:40)
Factual error: The rabbits are underneath the landrover, and they get shot out the back whilst holding on to the axle. Land rovers have an enclosed axle with a hub enclosing the diff, so this would not be possible.
Factual error: When Braniac's robot probe enters the atmosphere over Arizona, fighter jets attempt to shoot it down by hitting it with missiles. The pod is still going fast enough to be on fire from reentry. A missile could not have caught up to an object going that fast. (00:11:30)
Factual error: The term mayor of Paris was abolished from 1871 till 1977. But we see Victor Maynott wants to join the mayor campaign in 1910.