Examples: Itchy & Scratchy from The Simpsons, The Scary Door from Futurama, or The Grand Inquisitor from Dostoevsky.
The lusty argonian maid
The Princess Bride is one of my favorite examples of this, especially because the “story within the story” is the main story, which is unusual.
When I was a kid I absolutely loved movies with this format. It was like I was learning the story along with the characters on screen, and it just made it feel more real. Like the story was so old and with enough truth to it that they made a movie just about people learning about said story. It let you feel like the caring, kind old narrator was your adoptive grandpa, and he was revealing to you some ancient, fantastical part of our history. One that you could imagine really happened, even if the story had some exaggerations. Those opening sequences where they show a big old, leather bound book opening up to the first chapter (e.g. The Sword in the Stone)? HOOK IT TO MY VEINS
I’m surprised no one has mentioned the fake old movie that plays in Home Alone. “I’m gonna give you till the count of 10 to get your ugly yeller no good keester off my property before I pump your guts full of lead! One… Two… Ten!” 🔫🔫🔫🔫🔫
Tales of the Black Freighter from the Watchmen comics is pretty awesome.
All My Circuits on Futurama is one of my favorites on tv. Dramatic beeping intensifies.
Ow! My balls! from Idiocracy
There’s been some stuff coming out lately that makes me think this show isn’t far off.