At around 1:09h Tiffany enters the school for the interview wearing a black skirt and high heels.
Later at around 1:21h she stands up to leave the interview wearing a white skirt and boots.
During the interview in the school, Ani looks down at her feet in a puddle of water. She's wearing black high heels, but when the interview ends, she's wearing white boots.
Ten minutes into the movie when Ani "squats" in Lolo's office, she places a framed photo of her and Luke on Lolo's desk. However, after a minute when Aaron enters the office, the photo faces the other way. Later, the photo is facing the other way again after Ani places her ring on the table and stands up.
When TifAni eats the two slices of pizza in the restaurant, in one shot she puts a whole slice in her mouth, and in the next shot, she still has part of the slice in her hand.
In the 56th minute of the movie, Ani and Luke are kissing each other in the bathroom. Strands of Luke's hair are hanging down his face, but when the shot changes, all his hair is combed back.
Dean was shot in the spine in high school. His thighs and legs should have experienced major atrophy (shrinking of the muscles).
At 1h06m when Ani Fanelli goes upstairs for the big interview, she's wearing high heel shoes with straps. When she finishes the interview and comes downstairs a few minutes later, she's wearing mid-calf high heel boots.
Onscreen headlines show that Ani was in high school in the late 90s. During the flashback to Ani's high school field trip, she makes a note of witnessing a commanding woman walking on the sidewalk talking into her cell phone. This woman is speaking into a flat, rectangular smartphone that wasn't introduced until the first iPhone was released in 2007.
Near the end of the movie when TifAni enters the New York Times building, a New York taxi is seen advertising the play Harry Potter and the Cursed Child. That show premiered on Broadway in 2018. The story takes place in 2015.
The song is interrupted too quickly when Luke closes his laptop: it should be delayed by at least a second before the application stops.
Mr. Larson should have immediately called for paramedics when he learned that Ani was assaulted. Since she was a minor at the time, he did not have to abide by her wishes to keep the assault a secret.
Young Ani breaks the fourth wall when she is in the dean's office at 1:00'06".