Continuity mistake: Right before Agent Hart is revealed in her new "pretty" self, you see the three other agents waiting by the side of a car waiting for her to come out of the warehouse. When you see them from the back, Matthews is leaning against the car. Music comes on and you hear the hangar door open. From the back you see Matthews stand up, you switch to a frontal view and you see him stand up again. (00:34:25)
Plot hole: Just before playing the water glasses, Gracie plays a couple notes, one of which is very high. She drinks some water out of the glass to lower the pitch. The problem is that the pitch goes up when you remove water from the glass, not down. Drinking out of the glass would've made the note sound higher. Some people and websites will make you believe that the pitch is going down due to an increase in the size of the resonant chamber but singing glasses have nothing to do with cavity resonance. Glass singing is caused by the molecules in the glass vibrating in resonance with each other. More water dampens the motion, slowing it down and lowering the pitch. Some of the confusion comes from schools not teaching children that liquids and gasses are both fluids. In the case of water in glasses, the water is not changing the cavity as much as one thinks, just damping it. And finally, if you don't believe me, don't Google it, try it.
Continuity mistake: In the overhead aerial shot, as last year's Miss United States walks onstage with the tiara on the pillow, the tiara is in the center of the pillow near her body. In the next close-up, the tiara is now angled and in a completely different position on the pillow. In the next shot it's in the same position as the first shot. (01:38:30)
Continuity mistake: Kathy and the rest discuss Gracie's gun/cigarette man incident. In the wide shots and in the close-ups of Stan, Kathy and Gracie individually, items on the glass table, items on Kathy's desk, the easel near the pink flowers, and the short and tall lamps, change positions between these shots. (00:55:00)
Other mistake: In the first scene where they show the talents (they are outdoors) there's a girl playing the flute. For all you musically inclined, she takes a noticeable breath while the note is still playing. (00:52:10)
Continuity mistake: When Gracie is doing her water glasses performance, she sees the cowboy with a gun. In the first shot of the gun and when Matthews tells Gracie to wait until they have a visual, though the guns are long and silver in all shots, the gun's hammer and muzzle are noticeably different in these shots. (00:53:30 - 00:54:15)
Continuity mistake: In the FBI briefing room, McDonald tells Matthews to get a team together. In the first close-up, the black folder is under the one white memo sheet. In the wide shot as he stands, there are many white papers near his folder. In the next close-up, the black folder is under the one white memo sheet again. (00:12:25)
Continuity mistake: When Matthews and Gracie go to meet Vic for the first time in the restaurant, as we see over Matthew's shoulder Vic puts his hand on Matthew's shoulder. When the angle changes to a side view you see Vic put his hand on his shoulder again. (00:25:50)
Continuity mistake: In the scene where Miss Rhode Island is announced by Stan Fields as the winner of Miss United States, she puts on a face of joy but in a split second shot later, she has a shocked look on her face. (01:34:20)
Continuity mistake: At the ceremony William and Candace are talking about the awards show while Sandra is trying to catch the killer you see the big screen TV. Even though William and Candace are talking their lips aren't moving on the big screen TV.
Continuity mistake: When Kathy puts on the crown, the letters she just finished writing are a bit scattered and also her glasses are lying on the bottom sheet. Before she picks up the letters to point them out to Frank, they are in a neat stack. The glasses seem to be gone, since she isn't too careful when picking up the papers and there is no sound of the glasses falling or sliding onto the table. (01:13:10)
Continuity mistake: In the scene in the bar when Gracie is talking 'girl talk' with Cheryl, the Rhode Island contestant, you can see Cheryl's hair hanging down over her right eye. As they switch camera angles, you can clearly see that her hair is now high up on her forehead. The camera angles repeatedly switch back and forth, with the hair differences easy to spot. (01:09:10)
Continuity mistake: When Miss Rhode Island is on stage doing her baton twirling (before the flames) in the front shot, you see that her hands are on the very bottom of the batons and in the next front aerial view her hands are now in the middle of the batons. (01:26:50)
Continuity mistake: When Gracie is doing her talent show with the glasses, she sees the gun guy, runs, then dives off the stage at him. But in the replay they show on the TV in the next scene, she hits her table full of glasses when she runs and causes some to fall off even though that never actually happened. (00:54:15)