Portia de Rossi was not actually in the scenes of the family at the apartment. Her takes were shot separately and added later in the editors' room. A body double with their face out of frame was used for wide shots.
The Narrator (Ron Howard) says, "He even inspired a move that would appear two years later in a Han Solo origin film." Howard, of course, directed that movie, Solo: A Star Wars Story (2018).
Lindsay (Portia de Rossi)'s mocking of a British reporter is a callback to Donald Trump's mocking of a disabled reporter.
George-Michael (Michael Cera) and the UC Irvine students are watching a movie starring Rebel Alley (Isla Fisher), who can be heard saying Kitty (Judy Greer)'s line, "And say goodbye to these!"