Continuity mistake: In the scene where Beca is going to do night shift at the radio station,when she is unlocking the door to the radio station she has a handbag on her shoulder but when she enters the booth in the radio station she has a backpack on her back instead of a handbag.
Continuity mistake: Towards the end, when Beca and Jesse kiss, there is a gap of 2-3 seats between Jesse and Donald, even though they were sitting next to each other during the Bellas' performance. (01:41:00 - 01:44:00)
Continuity mistake: In the Nationals competition scene, Aubrey's hair is seen tied up, but soon after, her hair is down, and then it goes back to being tied, until she finally takes it down for the end of the performance.
Continuity mistake: During the Bella's performance of I Saw The Sign in which Beca starts singing Bulletproof, when Chloe sings the line "like me care for you" the camera focuses on the audience and there an older woman with glasses sitting next to a guy in a blue shirt, but in the next shot the woman has moved seats, and is now sitting next to a guy in a yellow shirt in the row behind the judges' table.
Continuity mistake: When Beca walks into the radio station at the beginning it says 85.7 on the window but when she walks into the studio the guy inside says 95.7 WBUJ over the tannoy. (00:15:50)
Continuity mistake: The water bottle to Fat Amy's right on the floor is present in 1 shot and next shot it is moved behind her much farther away. (00:54:10)
Continuity mistake: In the party scene when they show Bumper and Donald, a girl with a green shirt and a leather jacket walks down the aisle. When Fat Amy approaches Bumper, the same girl walks down the aisle as if she is just arriving.
Continuity mistake: In the scene where Beca and Jesse are in the radio station for the first time, Beca's hair changes from pulled behind her ear to loose between shots. (00:17:25)
Continuity mistake: When Benji and Jesse are approaching the Treblemakers at the activities fair, and the Treblemakers begin singing "Whip It," The Treblemaker in a blue shirt goes from the steps on the left to the wall on the right between shots, and is back on the steps when we see Aubrey and Chloe watching them. (00:09:50)
Continuity mistake: In the scene where Beca's dad wakes her up for her class her desktop is "awake" (showing her home screen). A few shots later Beca's dad walk towards it and the desktop is on its screensaver then gets bumped to awake. If the screensaver was set to activate after a period of inactivity, it would already have kicked in while Becca slept, not in the short time it's offscreen. (00:18:30)
Continuity mistake: At the second competition when Beca runs out, you can see the family walking down the hall with the mom, dad and son in that order from left to right. When Benji runs out after her, the kid is then in the middle.
Continuity mistake: When the Treble's are singing "let it whip" in the activities fair, Donald changes from sitting on the wall, to standing on the stairs, then back to sitting.
Continuity mistake: During the finals, Cynthia Rose's blazer is done up, but during the next shot, it's undone, then the next shot shows it's done up. (01:40:05)
Continuity mistake: In the scene where all the groups are together and having a party, Donald changes position several times. First he is standing next to Bumper and in the next shot he is dancing, the shot after he is again standing next to Bumper.
Continuity mistake: In the very beginning scene when the Treblemakers are singing "Please Don't Stop the Music", they do not have on sunglasses, then it goes to the commentators. When it goes back to the Trebles, they are wearing sunglasses, then a few seconds later they aren't again.
Continuity mistake: In the picnic scene, there is one extra in the background with a blue shirt and jean shorts that walks by three times.
Continuity mistake: When the Bellas are performing at the frat party, Chloe briefly turns her head to show that her hair is in an elaborate updo. In the scene immediately following that scene, Chloe's hairstyle changes to a bun pinned to the back of her head.
Continuity mistake: When Beca arrives during the fight scene you can see Denise behind Fat Amy and Chloe moved to approach Lily twice in between scenes.
Continuity mistake: Extra walks past Benji and Jesse twice as they are observing the TrebleMakers, he is easy to spot seeing as he's a fat kid in a brown shirt with black trousers and a backpack. 1st camera angle change is slick but he walks past again seconds later. (00:14:45)
Continuity mistake: During the shower scene where Beca and Chloe song Titanium, Beca begins the shower wearing gauged spike earrings but when Chloe startles her they are regular silver earrings and they remain that way for the rest of the scene.
Answer: It wasn't just that she sang a song he likes, she sang arguably the most well-known song from his favorite film in front of a huge crowd of people. It was a public, heartfelt apology rather than the abrupt, private apology she gave earlier.
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