In the first game against Iceland, when Fulton takes his shot, the puck goalie clearly catches the puck in the netting of his glove, but when he takes off the glove, a bruise appears on his palm.
In the game when Ms. MacKay is coaching, they show a shot of the game, and you can clearly see Charlie, Number 96, playing in the game. When they cut back to the bench, Charlie is next to Ms. McKay, telling her how to call a line switch.
Nearing the end of the second period of Team USA's first game against Iceland, the score is shown at 5-0. Iceland scores one more goal before the period ends. Then at what is intended to be the start of the third period the scoreboard shows the a 4-0 score and that it is the start of the second period. shows a score of 4-0.
In the first game scene against Trinidad and Tobago, the camera pans across the registration area by the ice. We hear the announcer talking about the game, and he says the score is 6-0, but the score board seen above the ice reads 7-0.
During the game where Bombay comes back and apologizes, the team performs the Flying V and the announcer says he has never seen the Flying V before, when in fact he is the same announcer that saw the Flying V during the team's last game in the first movie.
When Fulton is taking his shot in the final shootout, he stops and then shoots the puck. In hockey, players are not allowed to stop while taking a penalty shot and the puck must always be moving forward or else the shot is over.
Icelandic last names are very simple, consisting of the father's name plus either "sson" if the child is a boy, or "dottir" if the child is a girl, but almost none of the Icelandic skaters have last names that could actually exist in the Icelandic language
Numerous times during the film, the Duck players are on the bench without helmets. At this age, helmets would have been required to remain on at all times, or the team receives a bench minor penalty.
A few players throughout the movie are shown shooting ambidextrously: meaning they shoot both right-side and left-side. Unlike switch-hitters in baseball hockey players either shoot left-side or right-side, but never both.
The characters of Hans and Jan are supposed to be from Norway, but Jan refers to his brother as a strudel-head and makes hasenpfeffer for breakfast after Gordon returns home, both foods that originated in Central Europe. Also, both brothers speak English with an accent that is closer to German than Norwegian.
After the US team changes their jerseys in the final game, Fulton Reed's jersey says "Fulton" instead of "Reed"
When Adam Banks comes into the locker room before the big Iceland game and tells Coach Bombay "I woke up and the pain was gone," you can see Connie mouthing his lines behind him.
When the Olympia (a Zamboni knock-off) crashes into the rink, the smoke rising from the bottom is coming from a clearly visible smoke machine.
Throughout the sold out game at the Anaheim Pond there are numerous empty seats in the upper level and many cardboard cut-outs in the crowd. They don't move and their faces are pure white, they are very easy to see.
The newspaper article that reveals the result of the USA/Trinidad match contains three repeated paragraphs of text about disputes in planning applications, not a review of the match.
Throughout the film, Iceland is referred to as a powerhouse, and led by their NHL veteran coach. However, Iceland has actually never produced an NHL player, nor has Trinidad and Tobago.
Iceland's team name is the Vikings which is also the name of the NFL team in Minnesota, where Gordon Bombay and several team USA players are from.
When the Flying V is broken up by Iceland in the finals, the announcer says "a four-on-none break for Iceland" when five players are clearly visible.
At the end of the movie, a flying "v" of a flock of birds can be seen. The birds flying are actually geese although ducks can be heard quacking.
The sound that is made whenever the Iceland team scores a goal sounds more like a siren than a horn.
After a practice, a fog machine is clearly visible when three players from Team USA break through the wall with the Zamboni.
Adam says he is from Edina, which is a suburb of Minneapolis. In the first movie, his address is mentioned as 450 N. Hennepin Avenue. In reality, Hennepin Avenue is in Minneapolis proper is does not extend into Edina, so Adam would have to have moved between the two movies for this to make sense. (This is also doubtful, as he is derisively called "cake-eater" in both movies; cake-eater is often used disparagingly in the Twin Cities for residents of the affluent Edina.)
Team USA is playing games against countries where hockey is either irrelevant (Trinidad and Tobago) or not popular (Germany, Italy), instead of ones where hockey actually is popular (Canada, Russia, Sweden, Finland), although the victories against Canada and Russia were seen as being off-screen.
There is no way Adam could not have known that Russ Tyler was on the team and that they therefore had a full roster with him being benched.
When Charlie is skating around to collect The Ducks, his helmet is on backwards. As the team skates back to meet Gordon, Charlie and Averman can be seen, and both have helmets on backwards.
Wu mentions that he can do a "triple aerial". There is no such jump in figure skating. The six standard figure skating jumps are: Salchow, Lutz, Axel, loop, toe loop, and flip.
When The Ducks play the first game against Iceland, they call Adam, Captain Adam Banks, but Adam isn't the team captain, Charlie is.
With the exception of Gunnar, none of the other Viking players have actual Icelandic names.
Gordon was a lawyer yet doesn't read the contract that he receives from Biggles.