* AnimationAgeGhetto: Oddly enough, a positive example. It was intended for adults and teenagers, but only became popular when it was released on home video and allowed baby boomers to introduce their kids to Music/TheBeatles through a trippy cartoon.
* SugarWiki/AwesomeMusic: It's Music/TheBeatles -- go figure.
** Specifically "Hey Bulldog" and "All Together Now": songs that had been relegated to the archive bin and otherwise wouldn't have seen the light of day. They're considered fan favorites.
*** "Hey Bulldog" is awesome in a meta was as well for being what those present at the time of its conception refer to as the last time The Beatles were a complete band and not just four people with bloated egos.
** Also "Only a Northern Song," Harrison's swipe at not getting more record time, gets its moment to shine on the soundtrack.
** George Martin's score is no slouch, especially considering [[GenreRoulette all of the musical styles it covers]].
* BigLippedAlligatorMoment: Oh, where to begin! Ringo's entire house could be called a Big Lipped Alligator MANSION.
* BrokenBase: The Beatles' voices. Some find their deadpan reactions to ''everything'' to be part of the humor, others are bothered by it sounding "bored."
* CultClassic: The story is very simple and the film didn't do very well at first, but it is filled with very surreal imagery which attracts people to it.
* HarsherInHindsight: The clock in the Yellow Submarine speeds up to the year 2009, which only half of the band (Paul and Ringo) would live to see.
* HilariousInHindsight: When George sees that the car changes colors, he says, "It's all in the mind." Guess what made it into the ''VideoGame/ParappaTheRapper'' series nearly 30 years later?
** The Beatles [[VideoGame/SuperSmashBros fight a giant flying glove, eh?]]
* PeripheryDemographic: As mentioned above, the movie was going for a young adult audience but was much more popular among gen x-ers and millennials who's parents used this movie to introduce them to the Beatles' music.
** [[WordOfGod John claimed in one of his last interviews]] that while raising Sean, he and Yoko deliberately tried to keep John's Beatles history away from him, and played down being a millionaire pop star. It was only when Sean saw ''Yellow Submarine'' for the first time while at a sleepover at a friend's house that Sean recognized his dad in the film, and thus his role in the Beatles.
* UglyCute: Jeremy.
** Many of the monsters who appear in the Sea of Monsters, including the one that briefly gets into the submarine.
* VindicatedByHistory: The film was initially a flop and killed the non-Disney feature animation market for years. Animator Creator/RichardWilliams, a fan of the film, claimed that the [[LimitedAnimation jerky, start-stop animation]] was to blame--it must have been, since Music/TheBeatles were at the ''height of their popularity'' by this point! That said, it has gained a CultClassic following over the years.
* WhatDoYouMeanItsNotForKids: A less extreme example. It ''was'' intended for older audiences, but there's nothing too vulgar about it that would keep kids from watching, which may be why [[PeripheryDemographic it's become such a popular way for parents to introduce their kids to]] Music/TheBeatles.
* WhatDoYouMeanItWasntMadeOnDrugs: In his book ''Up Periscope Yellow'', [[WordOfGod Al Brodax]], the man behind the production, who wrote or co-wrote most of the non-musical sequences, swears the only time he ever had drugs was in a meeting with John Lennon ''after'' he'd finished the script.
** In the behind-the-scenes portions of the DVD, it's revealed that while the animators never did drugs, they would often return to work a little drunk after having a few too many pints during their lunch break.