- Audience-Alienating Premise: While there hasn't really been an outcry about the film, it still hasn't been watched by most people. When a film is about parents wanting to murder their children, and the film is relentless, gory and filled with Black Comedy to boot, you can kind of understand why the premise alone gets this reaction.
- Critical Dissonance: The film had an overall positive critical reception (it has a 74% Certified Fresh Rotten Tomatoes Tomatometer rating), but audience opinions were more mixed (it has a 39% audience rating on the same site, as well as an IMDb rating of 5.5/10). This is presumably due to the Audience-Alienating Premise.
- Crosses the Line Twice: A mother trying to crush her newborn baby? Horrifying. A mother trying to crush her newborn baby to the tune of "It Must Have Been Love"? Hilarious, but also still horrifying.
- Memetic Mutation: With Brent's rant in this film including "anal beads" out of nowhere, some people have cracked jokes about "NOT THE BEADS!".
- Narm Charm: It's a movie with Nicolas Cage. When it's not Narm it's this trope in spades.
- She Really Can Act: Selma Blair gives a heart-wrenching performance as Kendall in the scene where she breaks down crying over her getting older.
YMMV / Mom and Dad