These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: A Hard Day's Night
Big Lipped Alligator Moment: The Beatles taunt an old man on then train, walk away, then suddenly, they're outside, messing with him again, before they get back on, carrying Ringo for some reason.
An In-Universe instance: During their show in the end, Paul's Grandfather enters the stage through a stage elevator, and George immediately shoves him off, much to the horror of the TV director.
"A train and a room and a car and a room and a room and a room"...basically the kind of fishbowl atmosphere that the Beatles would really come to loathe by 1966, before they quit touring. They were prisoners of their own success, stayed in enclosed quarters under tight security, and never really got to enjoy being a touring band because it was hard for them to get out and enjoy the places they toured in without being, erm, surged after. Every country or city felt the same as the last one.
Ringo having the most fan mail is pretty sad in light of how in 2008, Ringo announced he would no longer accept anymore fan mail.
Ho Yay: John providing most of it by doing such things as singing love songs to Ringo, blinking frivolously at men on trains, and just briefly passing an effeminate, well-dressed man in a hallway and admiring his attire.
John: Gear costume. Man: Swap? John: Cheeky!
More when Ringo jumps around with that guy at the nightclub.
Narm Charm: The Beatles never did any acting before, and there are times that they seem to hit their cues extremely prematurely, like George getting out a pen before being asked to sign an autograph, and Ringo getting "hit" by the tire, even though it misses him by several inches.
Seinfeld Is Unfunny: The movie went a long way towards codifying a lot of the visual techniques and tropes of music videos that dominated The Eighties music scene.
Stock Footage Failure: When the Beatles get into the cab to their hotel, they're all wearing suits and ties, but when we cut to them driving off, John is inexplicably wearing a turtleneck and jacket, in footage taken from one of their tours.