Revealing mistake: In the scene where Bruiser is reunited with his mom, you can obviously see that Bruiser's mom isn't a female. There is a shot where the dog's tail is lifted up, and you cannot see female genitalia.
Continuity mistake: In the scene where Elle is at the Lincoln Memorial, her shadow alternately is cast away and towards the statue depending on the camera shot.
Plot hole: In the opening of the film, some of the characters are flipping through a scrapbook they've made documenting Elle's experiences in the first film. The problem is that many of the pictures are of moments when no photos were taken, so how did they get the pictures to put in the scrapbook?
Continuity mistake: When Elle has her comitee hearing, she says when introducing Bruiser "my best friend..." then you see her put down a sign that says Mr.Bruiser in front of Bruiser and you can see her lips forming the words "my best friend...Bruiser" in the right top corner. When the camera shots Elle again she says "Bruiser".
Continuity mistake: In the scene where Elle sees her desk in D.C., she starts listing things that she'll need to make desk pretty. When she does this, she takes off her white gloves, but when she's finished listing, it zooms in to Bruser and you can see that her gloves are still on.
Audio problem: In the scene where Elle is at her first day in Washington, Timothy calls her "Britney" while he and the others are arguing and you hear "My name is Elle", but one shot shows Elle, and her mouth isn't moving to the words.
Continuity mistake: In the scene where Sally Field is about to be interviewed by Connie Chung, we see her walking towards Elle as she comes in. Her black pearls are on the outside of her jacket lapels, but as she turns around to walk away from Elle her pearls are now tucked neatly under the lapels of the jacket.
Continuity mistake: In the scene when Elle is sitting at the table talking to Emmett about coming home, you see a security guard walk past in the background. When Elle sees Grace and walks towards her, you see the same guard walking past again.
Continuity mistake: When Victoria is getting her makeup done, she is talking to Elle, they change the camera angles every time it is Elle's or Victoria's turn to talk. You can see that the makeup artist is changing the position of the brush she is holding, from up to down and up again and so on and so on...every time they change the shots.