Continuity mistake: When Casey is skating on the pond after she leaves Harvard, she falls multiple times. The second time she falls, she lifts her right leg causing her foot to come into frame. On her feet you can clearly see that she's wearing black and green snow boots, even though seconds before that she was wearing white figure skates.
Continuity mistake: In the opening scene when Cliff Murdoch's radio fritzes out, Cliff is fiddling with his microphone, but then in the next shot, the microphone is down on the tabletop in front of him. (00:03:10)
Revealing mistake: In the final shot of the film the model makers neglected to include the antenna at the top of the Eiffel Tower, seen previously on the real tower in the establishing shot of Paris. (02:31:20 - 02:37:10)
Revealing mistake: When Angelo is shot in the back at the airport, you can see a pack underneath his shirt when he is rolled over by Utah. (01:39:44)
Factual error: When driving to meet the Jordans you can see a white car in the distance on the right that is from the 21st century. (04:01:00 - 04:04:00)
Other mistake: When Jimmy is putting the first newspaper article up on the bulletin board, the article is titled "Owls Win Fifth Straight", but the actual article text talks about the Owls having just played and lost the last game of the season that "not only knocked the Owls from post-season action, but ended a 17 game winning streak." (00:46:45)
Continuity mistake: When Kurt gets into a fight orchestrated by Xian Chow at the bar, one guy smashes a glass against a table and holds it in his hand. In the very next shot of him, before Kurt kicks him, the glass is gone. (00:57:03)
Continuity mistake: In the scene where Haley is sitting in the bathtub full of ice, she is wearing a black sports bra. The shot then switches to some of the girls watching a news report from the Worlds competition. It then switches back to Haley, who is now wearing a gray sports bra.
Revealing mistake: During the fight montage, the winner of the first match wins by kicking his opponent in the face. His foot never makes contact.
Continuity mistake: At the beginning of the film, the young Roy breaks a board of the hen-house wall with a pitch. When the shot cuts back to the hen-house wall a moment later, the hole is a different shape and in a different place.
Factual error: The ship transporting the Great Britain team to France has a marine radar antenna, which did not appear on ships in that decade.
Continuity mistake: When Maggie is first shown in her hospital bed, you see her left eye is closed and swollen from the fight. Then, you see her left eye normal, then it goes back to swollen and shut. (01:33:20)
Other mistake: At end of movie where there are captions describing how the lives of everyone turned out, for Louie it says "after years of SERVERE PTSD..." instead of "severe." (02:10:25)