In this parody of Heavenly Creatures (minus the murder), Lisa and an imaginative fellow student invent their own fantasy world, Equalia, but Lisa begins to worry that her new friend may love fantasy more than reality.
- Abusive Parents: Juliet's, of the "so disconnected with what their daughter desires and obsessed with a routine that she hates that she does anything to escape" type.
- Anti-Escapism Aesop: The more that Juliet and Lisa work on Equalia, the less connected to reality they are (and Juliet becomes crazier as the episode goes on). Marge comes concerned about this and tries to prevent Lisa from being dragged down with Juliet.
- Bait-and-Switch: Through Equalia, Lisa and Juliet watch Kearney beat up Jimbo and Dolph after entertaining Kearney with their world. In the real world, Kearney is actually getting beaten while he's still imagining Equalia.
- Bound and Gagged: Just the former in this instance but this is what Jimbo, Dolph and Kearney do to Lisa and Juliet after discovering them using their hideout.
- Captain Oblivious: Homer thinks Principal Skinner is expressing concern about Bart even after Skinner and Marge repeatedly remind him they're talking about Lisa.
- Cloudcuckoolander: Juliet likes roleplaying and has overactive imagination preferring live in her fantasy world than the real.
- End of an Age: This was the last episode to air in 4:3 standard definition and feature the classic opening sequence used since Season 2, before switching to high definition and introducing a brand new opening sequence.
- Fangirl: Juliet is this to the singer Josh Groban as she is introduced while drawing him like a Knight in Shining Armor.
- Romantic Two-Girl Friendship: Juliet and Lisa. In their fantasy world, they're the two queens who rule over the land of Equalia. And then they run away together when Marge, fearing that their friendship is having a bad effect on Lisa, attempts to separate them.
- Add that the episode is based on the plot of Heavenly Creatures where the girls WERE budding baby lesbians.
- Sanity Slippage: Juliet. She eventually becomes so attached to Equalia that even Lisa starts to feel nervous around her. It ends with Juliet ditching Lisa because she doesn't see the point to fantasize so much (though Lisa recognizes she's insane).
- Shown Their Work: Juliet's John Grisham-loving dad puts on the album of James Horner's score for The Pelican Brief - track 3 is indeed called "Researching The Brief."
- Standard Fantasy Setting: Equalia.