Kim (Dianna Agron) is referred to as a "shiksa", meaning non-Jewish woman. However, Dianna Agron is actually Jewish in real life, unlike lead actress Rachel Sennott, who was raised Catholic.
The water bowl used to clean the coffee off Danielle's shirt is supposed to be used to wash hands when entering the Shiva house immediately after the funeral.
The lock screen on Danielle's phone visible during a few scenes is an image of lead Rachel Sennott and director Emma Seligman.
The first scene in the movie was the last to be shot.