The final concert contains 3 songs ("If I Fell", "I Should Have Known Better", "She Loves You") for which John played an acoustic guitar on rhythm. However, he plays his electric guitar throughout the concert.
Just before the group performs the song "I Should Have Known Better", John is sitting in the livestock carriage, playing with a deck of cards. The sound of shuffling can be heard a moment before he begins to shuffle them.
When the boys play "She Loves You" at their TV concert, Paul's Grandfather pops up on stage and George pulls him off. In doing this George takes his hands away from his guitar but the lead guitar riff continues as if he is still playing it.
When The Beatles leave their fan letters to go clubbing, George and John are wearing white dress shirts covered by coats. When they are later seen dancing at the club, George is and John are wearing black turtlenecks.
On the train John is wearing white shirt with a black tie. When they run from the train to the waiting car, John is shown inside the car wearing a black turtleneck shirt (the latter shot being taken from actual footage of the band being mobbed).
Towards the end of the film, when Paul's grandfather scams his way into the theater, he's being chased by one policeman who isn't wearing a cap. However, in the next shot, from inside the theater, Paul's grandfather is being chased by two policemen, both of whom are wearing their caps.
When Paul's Grandfather is selling pictures of the group outside the theater, the girls who surround him knock his hat off his head. Immediately after, as the Bobbies (Policemen) rescue him from the crowd, his hat is still on.
During the concert near the end, the set during 'She Loves You' changes. When the Beatles are shown on stage, there are big lights behind them. In the control room, the shots of the stage show pictures of the Beatles in the background.
During "She Loves You" where Paul's Grandfather rises onto the stage there is alternatively a microphone stand and a floor panel askew. The elevator platform is black when it rises, but later we see both the skewed panel and a mike stand in the same place.
The scene where John is in the bath, there is a metal soap tray across the front of the tub through the scene, but it disappears sometime between John being "torpedoed" and Norm bursting through the bathroom door.
Ringo asks the boy why he isn't at school, but it is established that the time is at least 5.50pm (incidentally the clock in the canteen has obviously had its hands fixed at 5.50 for continuity reasons, though the second hand is seen to go round)
During the performance of "She Loves You" a man in a light-colored outfit can be seen running through shot on two of the cameras views as seen in the monitors (John can be glimpsed being momentarily distracted by him). No reference is made to this major error, not even by the director who otherwise is shown reacting in shock when Paul's grandfather appears on stage.
When Paul's grandfather and Ringo are sitting in the canteen, the sugar shaker on their table has about 2/3d's amount of sugar in it. Later in the scene, when Paul's grandfather picks it up to put sugar in his coffee, it's empty.
After The Beatles escape the press conference they find Norm and Paul's grandfather finishing off sandwiches and drinks. George pulls a pen out of his pocket moments before Grandfather says, "Hey George, give us your John Henry on this picture?"