Character mistake: When Greg and Rose are playing backgammon, Rose counts the middle of the board as a place to count when moving a piece, but the middle of the board isn't a place to count.
Character mistake: When Frank proposes to a hypnotised Jane at the ball game, he says he bought the engagement ring 'this morning.' That morning they were still broken up, with Frank suspecting Jane of setting him up to be shot. They didn't reconcile until immediately before the game.
Character mistake: A space traveler would not be "going to Orion." The major stars in Orion vary in distance from the earth from 243 to 1,360 light years. Orion is only a constellation as visible from Earth; once you get away that far, the stars would not be in the same alignment as they are from Earth. They would have been going to a specific star, probably Bellatrix at 243 light years, as Taylor mentions being at 320 light years.
Suggested correction: I'm not sure what scene you're referring to, but I never heard anyone say they went to Orion. Taylor says they're on a "planet in orbit around a star in the constellation of Orion. That could be Bellatrix." To Taylor, who is from Earth, the star is still in the constellation of Orion.
I agree with your take, but I still think it could be interpreted as Orion's stars all being in close proximity. And I would hope they would know about the 320 - 243 light year issue.
Character mistake: The guitar player is holding the guitar the wrong way. There is a cut-out designed to play higher notes for a right-handed player; he is playing it left-handed, hence the correct way would be in the other hand. (01:04:35)
Character mistake: The map has the word Corazon missing the accent: "Corazón". This is so basic grammar that maybe it was done on purpose.
Character mistake: Tony, as a cop, should've known to cuff Rose's hands behind her back. He also apparently doesn't cuff Harriet properly as she's left outside with them dangling from one wrist.
Character mistake: According to her biography found in the library, Elise was born November 11, 1885, but William Robinson tells Richard that he met Elise when she was 16 years old, in March, 1903, at which time she would have been 17.
Character mistake: Mac's cousin says that even if Nick wasn't a cop, he'd have to hate Mac's guts. He says that Mac wears a Rolex and Nick wears a Timex - not true. Nick is wearing a Rolex, also.
Character mistake: Thomas rips off his one glove as he makes his escape but then grips the bottom edge of the security door to slide under it. Smooth metal door would leave perfect finger and palm prints. I doubt detectives would miss prints on a door that was normally recessed away from the public. His prints may not be on file but would be easy to obtain once he was under suspicion. (00:19:20)
Character mistake: In the courtroom scene set in the 1870s, Morgan Earp responds to a defendant with "Nice and easy my ass." While "ass" was used as slang in the 19th century, the dismissive phrase "my ass" as a sarcastic retort isn't documented until much later, making it sound more like 20th-century speech than something cowboys in a frontier courtroom would say, making this an anachronistic turn of phrase. (01:45:30)
Character mistake: The American flag at the New Orleans Mardi Gras is hung the wrong way on the building.
Character mistake: Mitch and Hecky are experienced ranchers - so why, when they are all camping, would they leave all the food out in the open within easy reach of bears and other wildlife?
Suggested correction: Is this in reference to when Vicky throws the food everywhere? Mitch is obviously already up and about in this scene as he is wearing shaving cream. That may be food he has put out for breakfast for when everyone else gets up.
Character mistake: Breaking the news of war to the Sayers, Allnut tells them that the war is involving smaller nations like "Austria, Hungary, Belgium, Spain." Spain was not amongst the participants of WW1. (00:10:00)
Character mistake: It sounds like the person who called him on the cell is not a secretary but also Cameron Diaz pretending to be a secretary. The same voice. (00:07:12)
Character mistake: Near the end, Iris's doctor attempts to take John's pulse. He has his hand wrapped around John's hand, his fingers nowhere near the top of the wrist, where the artery is; and as he counts the "beats", against his wristwatch, John talks to him and he talks back - when you are counting something, you can not talk at the same time; you lose count every time.
Character mistake: At the very end of the movie, Jack Lemmon begins dealing cards for the gin rummy, but he deals about 14 cards before the fade to black, in a 10 cards game. (01:59:45)
Character mistake: When Marian is correcting Amaryllis for the girls' poor grammar in saying "can I" instead of "may I" over the cross-hand piece, the girl then asks if she can go play that cross-hand piece and Marian replies, "now you can play your cross-hand piece."
Character mistake: When Taj is getting ready to give Naomi a massage, she tells him she likes the song on the stereo. Taj replies "It is the White Barry" (meaning Barry White). It's actually a song called "Stumblin' In" performed by Suzie Quatro and Chris Norman.
Character mistake: When Adams is chewing out Altaira for flirting with his crew, he says that he is "in command of 18 perfect physical specimens." With him, that would make for a total crew of 19 on the C57-D. But the complete cast only shows 18 names, including Walter Pidgeon as Morbius and Anne Francis as Alta. (And discounting Robby and his human handlers). Thus it would seem Adams is off by three. He has only 15 under his command. I've tried counting them when they're in group shots, but can't see everyone.
Character mistake: Sarah after speaking to Sky when they come back from Havana and the thugs leave from playing the crap game she goes in the Mission she reaches for the light string to turn off the light she doesn't ever get the string in her hand but the light goes off.