Character mistake: When they deliver Xmas presents to Denmark it's already too late - Denmark has the presents on the 24th, early in the evening.
Character mistake: After Reed proposes to his girlfriend, he calls Julia and leaves an excited voicemail telling her he has huge news. When Julia listens to what is supposed to be the same voicemail, the wording and tone are completely different, leading Julia to think something was wrong, such as his girlfriend declining the proposal.
Character mistake: When Dale and Allison are playing Trivi-Up, Dale rolls the dice and says "Five". However in the next shot the dice shows "One". (00:24:05)
Character mistake: When Nanny is coming home from getting the collars, she calls for Roger and Anita to come downstairs. Plowright accidentally says "Roderick, " rather than "Roger."
Character mistake: Sauvage declares that he is going to turn England into a prison, but the graphic he is displaying puts the prison walls around the entire island of Great Britain. (01:03:30)
Character mistake: In the Western scenes, when the characters are wearing spurs, they have the spur straps buckled on the wrong side (inside) of the foot. Spur strap buckles are supposed to be on the outside, not the inside, of the foot. Since it's wrong in every scene, it might be a comment on the TV show itself having low attention to detail.
Character mistake: Marcello tells the girl to get his niece an ice cream, he then, when speaking to Frances, refers to the little girl as "my nephew."
Character mistake: When Hollywood Montrose tells Jonathan Switcher that all the female mannequins have been stolen, they both run into the front window where there's a female mannequin.
Character mistake: Candy's full name is Candace Washington, which is referred to in the movie, yet when she is released early from prison, the correction officer calls her Candace Collins.
Character mistake: When Boris and Natasha (Jason Alexander and Renee Russo) are at the airport (just missing Rocky, Bullwinkle and the FBI agent) Natasha says something about "Moose and Squirrel don't even know our names", yet earlier in the courthouse scene, Bullwinkle says something about Boris and Natasha being real people and Rocky and Bullwinkle still being cartoons.
Character mistake: In the scene where Crapgame is sitting in the back of the truck at the end, when the men are loading Kelly's squad's take after splitting with the Germans and Oddball, Crapgame asks Fisher to verify his calculations. There are 125 boxes of gold left valued at $8,400 per box. Fisher says that they are worth $10.5 million, and each of the twelve men in the squad will get $875,000. The actual amount (125 x 8400) is $1.05 million, making a per man take of $87,500. He's off by a factor of 10 one way or another.
Character mistake: In the scene where Stewart calls Nicole at the end of the movie, he tells her that he got a horse shot in the leg, when in fact they showed him getting the shot in his neck.
Character mistake: In the scene when Dave is checking out the failed transmitter at the radio station, Dave says "the bad news is your return loss - way too high". This is a mistake, as the movie makers got confused between the terms "return loss" and "insertion loss". Dave should have correctly said either "your return loss - way too low" or "your insertion loss - way too high".
Character mistake: When Tom is talking to Riff on the phone, he mentions that he is listening to the Ramones's latest album. However, the song playing as he says this is "I Wanna Be Your Boyfriend," which is from the Ramones's first album.
Character mistake: At the Gazette office, as Ms. Rees-Jones watches, Steven scrolls up the next front page of the Gazette on his PC and under the photo of Chuck Hughes it reads, "...dead at age 37." However, when Frank gets into his car after being kicked out of the cemetery, under the current Gazette headline it reads, "30 yr. old Chuck Hughes who died of a mysterious heart ailment..." (00:03:10 - 00:05:30)
Character mistake: When Mrs. Doubtfire gets her own TV show at the end, she asks the puppet if he knows anything about England. The reply is, "I only know that it's an island", which is not true. Britain is an island, not England.
Character mistake: In the scene where Kris's knowledge is being tested, he incorrectly gives the vice president of President John Quincy Adams. Kris states John Quincy Adams' vice president was Daniel D. Thompkins. That's wrong. John Quincy Adams' vice president was John C. Calhoun. Daniel D. Thompkins was the vice president under President James Monroe.
Character mistake: When Spoken Reasons describes Kaitlin Olson, he says she has brown eyes. She has blue/green eyes.
Character mistake: When Benjamin answers the phone in Lt. Rami's office, she should have said Lt Rami's office instead of Pvt. Benjamin.
Character mistake: Baymax, a healthcare robot, says that his programming includes a database of 10,000 symptoms of disease. Yet, he issues the warning, "After eating, wait one hour before swimming." That warning, often given by parents to their children, has no basis in medical fact. People who do not get cramps after eating will not develop cramps by going swimming after eating: http://www.snopes.com/oldwives/hourwait.asp.