- Base-Breaking Character: Lloyd. While he was liked by some who saw him as a nuanced character who lets go of his bitterness and becomes a better person over the course of the movie, some people saw him as a perpetually bitter Jerkass who was hard to sympathize with or care about. There were other viewers who overall liked him, but thought that he had a bit too much presence in the movie and took some screentime away from Mr. Rogers, or that his family problems were unnecessary.
- Hilarious in Hindsight: Haley Jenkins, who puppeteered X the Owl in the movie, would later go on to puppeteer and voice Donkey Hodie, the titular character of a Mister Rogers' Neighborhood spin-off.
- Just Here for Godzilla: For many, the main selling point of the film is the idea of Tom Hanks playing Mr Rogers as he was universally agreed to be the perfect choice before the cameras ever started rolling.
- Narm Charm: By all means, a nightmare about starring in an episode of Mr. Rogers while wearing rabbit ears should be ridiculous and it is, but Lloyd's anxieties become clearer as he sees his wife as Lady Aberlin and Mr. Rogers wants to talk about hospitals.
- Signature Scene: The moment where an entire subway car spontaneously sings to Mr. Rogers is quite memorable. Helps that this actually happened in real life.
- Unintentionally Unsympathetic: Lloyd's wife and sister come across as this when they spring the surprise that the older Vogel father is coming to the latter's wedding, the day that Lloyd and his wife are going. Then his wife gets passive-aggressive when Lloyd considers playing hooky on it. They are also quick to blame Blair for the fight that breaks out at the wedding when Vogel gets him alone and nobody considers or any even asks if he could have provoked Blair. At the very least, they could have respected his boundaries about the trauma and warned him earlier. After all, as Lloyd points out, he can still hear his mother screaming when she was dying, while his father was out cheating with other women and eventually left. Neither he nor Lorraine receives an apology for a good long while. It's not until the end of the movie that they respect Lloyd's boundaries, who reconciles with his father on his terms.
YMMV / A Beautiful Day in the Neighborhood