When Harriet sits in the chair to listen to music, the setup is an homage to the Maxell cassette tape ads from the 1970s.
Morris tells Harriet that she was so talented she could have been a new Alan Parsons. Alan Parsons was the Sound Engineer for Pink Floyd's album "The Dark Side of the Moon" and almost at the end of the film we can see that the screen wallpaper on Harriet's smartphone is a reproduction of the cover of the album "The Dark Side of the Moon" .
David Corenswet and Lucy Boynton also starred together in The Politician (2019-)