Continuity mistake: When Elle is visiting Brooke in jail and takes her all of the goodies in the basket. Elle holds up the "Bible", (cosmopolitan magazine) and Elle's hair is behind her ear, yet in all of the other shots of Elle on the phone, her hair is down and the phone is on her hair.
Factual error: In the final graduation scene, the faculty members on the stage are all wearing mortarboard caps. In fact, they should be wearing the traditional "doctors" graduation caps which resemble Scottish tam-o-shanters.
Continuity mistake: Just after Elle's first day at Harvard she takes off to get her nails done. When she sits down in front of Paulette she places her hands on the table and fingers in the manicure bowl. The next shot is of Elle's back and her hands are not even on the table. Then back to Elle's face and her hands are back on the table and finally, Elle's back when she finally places her hands on the table. (00:30:55)
Continuity mistake: When Elle firsts sits down in the CULA counselor's office, to discuss getting into Harvard Law School, her hair is in front of her right shoulder, obscuring the sleeve of her t-shirt. The counselor speaks and in the reaction shot, her hair is behind her shoulder, you can see both sleeves. Then the counselor responds and her hair is in front of the same shoulder, again obscuring the sleeve. This repeats between shots. (00:13:10)
Factual error: By the time all the students are looking on the selected first year interns, they're looking there as though it was a big list that they have to flock around in a mess. They are supposed to be law students. I believe one glance on a four-numbered list is enough to memorize all of the names listed there.
Visible crew/equipment: Near then end of the movie, Elle leaves the courthouse after winning her case and walks out double doors that are opened for her (she says "thank you boys"). The lighting effect is a bright white scrim. You can see the white scrim material taped together in three sections, and the left-most section even has wrinkles at the top pretty bad quality set construction. (01:29:00)
Continuity mistake: At the scene where Elle is shopping with her two friends for an outfit to wear, the saleswoman gives her a red cloth. Look at Elle's rear reflection in the mirror. There's a lot of hair at the back of her neck, but in the next shot, only a single strand is left at her neck. (00:04:35)
Continuity mistake: When Margo is picking out her wedding dress, Serena has short hair, but in the courtroom scene, she has long hair. (00:38:40 - 01:22:00)