Character mistake: Towards the end of the movie when Tim Allen is on the roof and the fire squad is called. One of the firemen carrying the ladder accidentally hits a man in the head with it.
Character mistake: The name on the sign of the pub/private members club of the Manchester United fans is spelt incorrectly: It should read "The Feisty Goat" but Feisty is misspelled on the sign as "Fiesty" instead.
Character mistake: When the mathletes advertise their poster on the desk it reads 3.14... then they make up numbers instead of following the actual number of pi. (00:01:00 - 00:03:00)
Character mistake: The most Michelin stars a restaurant can get is 3, not the 4 Adam Sandler is talking about.
Character mistake: After Veronica Corningstone becomes an anchor, there is a montage of newspaper articles featuring her. Her name is misspelled as "Veronica Cornerstone" in one of the headlines.
Character mistake: Garfield calls two different dogs Boomer. The first is a white dog at the vet. The second is in the scene at the train station when the dogs from the pound come in Garfield calls Spanky, the brown dog, Boomer.
Character mistake: Jenna has Sparkle letters at her work. Wouldn't she get caught earlier?
Character mistake: The pilot announces that they will be flying from the 310 (California) to the 212 (New York City/Manhattan). There is no airport in Manhattan. The closest airports are JFK International and LaGuardia which are both in area code 718 (Queens).
Character mistake: The final deciding question at the Law Society quiz is "what was Madonna's first UK single?" Bridget says it was "Lucky Star" but the quizmaster says that is wrong. Rebecca says it was "Holiday" and the quizmaster says that is right and announces that her team have won. The only problem is that "Holiday" was not Madonna's first UK single either, her first UK single was "Everybody", released in December 1982.
Character mistake: Flynn has been reading for a while, taking notes, spreading books around, etc. - when Nicole arrives and says that it was nice to watch take-off from the cockpit. The plane must have been in the air for a long time by then.