Factual error: The time is set in 1980 but the cars on the motorway are not remotely appropriate for the era. (00:01:36)
Continuity mistake: The protagonist's music video dream gets interrupted by Victor strumming his guitar and asking for waffles. In the overhead shots, the necklace is quite prominently embedded into the cleavage of Lucy Hale. They alternate with a sideview where the string is spread across her chest. (00:01:25)
Visible crew/equipment: When Eddie arrives at the casino near the end of the film, he opens the car door and in the reflection you can see the filming crew.
Visible crew/equipment: When June performs Juke Box Blues there is a shot on the stage towards the audience and a steadycam operator can be seen on the right side of the screen. (00:45:18)
Deliberate mistake: In the Spanish release, the name of the family store is written in Spanish, but inside the place it's in English everywhere. This is a very common mistake in foreign kids' films released in Spain.
Continuity mistake: When Parker is waiting to listen to Elvis sing for the first time the mic cable changes positions between shots.
Continuity mistake: The first view of the 2001 Oddyssey Club's billboard reads "Fri Sat Carol Douglas - Next Wk Blue Magic." A few seconds later when the car turns the corner, the artist on the billboard is simply "Monterock." The sign further down the wall about the annual disco contest also changes style, with the letters being closer together. (00:12:08)
Continuity mistake: When the girls are in the outside tent, Emma keeps changing from having her lollipop in and out of her mouth.
Continuity mistake: Just after Lydia shows Eliot the picture of Petra on her phone, she sets her phone down on the table. When this happens, she has her left arm resting on the table. But in the next shot, her left arm is off the table. (00:21:15)
Factual error: Eazy-E sports a black Chicago White Sox hat with a white logo early in the movie in 1986, but the logo didn't officially rollout until 1991.
Other mistake: An old woman in a dress shop peeps out to see all the cameras in front of her store before the Beatles run by on their way back to the studio. (01:13:40)
Factual error: In the shot of the front of the National Gallery as the disc jockeys walk down the stairs towards the camera, modern-day surveillance cameras are visible on curved poles to the left and right of the main frontage. (00:52:30)
Continuity mistake: During the "Another one bites the dust" scene, Freddie is given a sheet, which he holds with his left hand, beer in his right. A shot later the beer is gone and the sheet has swapped hands. Then a shot later the bottle reappears in his right hand. He never gives it or has it given back. (01:12:55)
Suggested correction: Freddie drops the lyrics sheet after shoving it in Roger's face - he holding his beer in his right hand. Freddie gives the beer to Roger and when the camera moves to a close up of John's hand's playing the bass, Freddie crosses in front of John and picks up a new sheet from the table where Brian is sitting. The bottle never reappears in Freddie's hand.
Continuity mistake: When Bad calls his son, the phone he's holding moves from his right hand to his left between shots. (01:13:10)
Continuity mistake: When Elton and John Reid are kissing in the cupboard John's hand keeps changing between shots. John's hand rolls down Elton's chest, then the next shot it's on Elton's cheek, the next shot he takes his hand away, then the next shot his hand is by Elton's mouth and Elton pretends to bite John's thumb.