When Gracie enters the dressing room in her swimsuit she has a towel wrapped around her, covering the pin, but the men are able to see the dressing room on their monitor.
Cheryl hits Gracie with the roses and all the petals fly off. After Gracie steals the crown off Cheryl's head, Cheryl hits Gracie with the roses again, but some of the roses have reappeared.
Miss Ohio is played by two very different-looking actresses.
When Miss Rhode Island is doing her flaming baton routine, the batons are clearly scorched black, but when her routine is over they appear unscorched, without having been extinguished.
During the "One in a Million" dance opener of the pageant, the contestants are seen with lots of glitter on their bodies and in their hair as part of their uniformed costume. Once the routine ends, no glitter is ever shown again on a contestant as they compete through the beauty pageant. It would have been impossible to get all the glitter off in such a short amount of time.
When it is suggested that the original Miss New Jersey will be disqualified for making an adult film in order to make Gracie her replacement, no mention or explanation is made regarding Miss New Jersey's runner-up who would be the rightful replacement. This would be glaring to anyone who attended the Miss New Jersey pageant, particularly the slighted runner-up who would surely make a very public stink about it.
When the FBI receive the first letter from The Citizen. The first sentence says "I write again from Misulu Montana". Whereas the correct city in Montana is "Missoula", this is purposeful misspelling as part of the code of the poem - as Hart later points out. Each word with "mis" is one of the code words and the letter immediately following is the next letter in the code. Put together, all the letters spell "united states" - hence Miss United States: Misulu, misnumbered, misinformed, mistaking, misery, miss divine... missiles, amidst, misadventures, mist, misers, misspoke. Though the rule of the code is not strictly adhered to throughout, the misspelling of Missoula is intentional and necessary to identify the code.
After Grace comes back from the bar she is uncharacteristically and inexplicably wearing a corsage. The corsage is left over from a deleted scene at her father's wedding.
When Gracie visits Eric at the pool, the depth indicators seem to be incorrect. While at first glance they look like "3 FT = 9 M", there is actually a decimal point, "3 FT = .9 M", which is correct (3 feet equals exactly .9144 meters, but close enough).
As Ms. Morningside is trying to open a bottle of aspirin, her "assistant" Frank Tobin comes toward her, and she almost calls him by the actor's name (Steve Monroe). We hear her say, "Ste- Frank..."
When Gracie is practicing gliding down the street, a large crowd can be seen watching the filming from the other side of the road.
In the final auditorium scenes, the rear of the crowd is obviously cardboard cutouts.
When Cheryl is twirling her batons, in one of the shots just before Victor and Eric are shown trying to get to Gracie, her stunt double is obvious.
After Vic leaves and Gracie has to do her own make-up, Miss Rhode Island tells the other girls to help her. Miss Rhode Island grabs some lipstick and when she tries to put it on Gracie, the tip breaks off, but she twists it off and acts normal.
At 1hr 29min 54sec the view of the audience shows perhaps the first 8 or 10 rows wildly applauding. All the rows further back appear motionless as if they are the cardboard cutouts mentioned in the commentary. Pausing the film at this point reveals exactly this, as the characters are not lit in the same way as the rows in front of them. (There are no highlights, it's just flat like wallpaper.)
Cheryl comments that she has memorized all 50 contestants, including herself, but in one shot at the breakfast, you can see a contestant with a District of Columbia sash, which means there'd be 51 contestants, not 50.
At 28min 7sec, Gracie Hart and Victor Melling exit the hotel for a walk down the street. Both they and a number of extras are wearing sunglasses. Whilst it may be sunny on some buildings, the street is deep into a city 'canyon' where no direct sunlight falls. It's really too dark for people to be wearing sunglasses in this street scene.
When agent Matthews requests to see agent Hart at the hotel she is wrapped in a bed sheet, when they walk back to the hotel the sheet is gone.
In the opening of the movie the actress playing Young Grace still has her baby teeth, which would make her between 6-8 years old. The date is shown as 1982. Later in the movie when Matthews is trying to find a female agent to go undercover and they bring up Hart, you see her birth date to be 2.11.1969. That would have made the child at the beginning of the movie 13 years of age.
When Gracie begins her "talent", one of the wine glasses is tuned to the wrong pitch, so she drinks from it and lowers it to the correct pitch. Lowering the water level in a wine glass raises the pitch of the note it plays when the rim is rubbed.
When Gracie is giving her final interview, the audio says, "I would take them out." But, the visual very clearly shows her saying, "I would take them down."
While describing Miss Rhode Island during the Top 5, Kathy continues to say, "with a minor in elementary particles" however when Kathy can be seen on the live feed of the jumbo-tron onstage, she is just smiling and not saying those words.
The winner is being announced and when Stan says, "Which means our new Miss United States..." his mouth movements are slower than the audio of his voice. Then when he sings, "She's beauty and she's grace," in the aerial shot of him, he's smiling, not singing.
At the pageant in front of the Alamo, Cheryl performs with the batons and it is a marching band, almost like a tape or CD playing, but the men in the background are playing electric guitars, only there are none playing. The sound does not match the instruments supposedly being played.
When Grace and Victor are leaving the restaurant in New York, a bus drives by with a huge University of Texas Longhorns banner on the back of it.
Gracie's earpiece is seemingly working fine despite her head being fully submerged after she is pulled into the swimming pool by Matthews.
When the "top ten" finalists are announced, there are only seven names called.
Throughout the entire movie Miss California is known as Leslie Davis but when she's called as one of the top five finalists, Stan calls her Leslie Williams.
When the Russian appears to be choking, Gracie says twice "he's turning purple", implying that he is not able to breathe. However, throughout the scene he makes sounds, which could not happen if he was not getting air. (The Heimlich maneuver should only be used if the victim can't make any sound at all.) In any case, the airway of an adult man is too large to be obstructed by a peanut. Possibly the filmmakers intended the Russian to be faking it, and Gracie to be mistaken about everything, not just her course of action but also the reason for it.
During the swimsuit competition, when Stan calls Rhode Island's name, you can see California on deck to be called next, but Stan immediately skips to New Jersey.
In the first scene that shows the bomb maker at work, little circuit boards designed specifically to help solder to integrated circuits are on his desk. Yet the camera then moves to show him doing it the hard way under a magnifying glass with bare wires. He's got the boards right there under his nose and yet doesn't use them.