Visible crew/equipment: When Lucy closes the car door after Jenna finally gets in, you can see the microphone and boom pole through the reflection of the car. (00:17:25)
Continuity mistake: When Jenna is 13, she enters the closet at her party and between shots from when she tells Tom-tom where the projects are, to the next shot of her, the blindfold tied around her seems to turns upside down. If you look at the pattern (stripes) it flips over. (00:10:05)
Continuity mistake: When Jenna first walks around after turning 30, the camera pans around the apartment and we get a good view of the small glass table in the lounge, and there is a remote control next to a magazine. When Jenna goes and sits on the yellow chair though, the remote is now on the magazine. Later when Jenna is throwing her letters, the remote has moved to its original place. (00:13:30 - 00:14:45)
Continuity mistake: When Jenna sees herself in the mirror and topples backward over the shelf, there's a tall floor lamp directly behind the striped armchair with an ottoman. As Jenna gets to her feet, we also see there's nothing beside the armchair's arm. When Jenna's new appearance shocks her and she whispers, "What is happening?" the floor lamp has vanished, and now a small table with a plant appears beside the armchair. (00:14:20)
Answer: Jenna asked the girl, "Can you tell I'm wearing underwear? Because I totally am". This is because when she was 13 just a day before, she was wearing big underwear. Now she's wearing a thong, which wouldn't be visible when wearing a dress.