While Lee is talking to the Carnival Worker, the fox stuffed animals in the background suddenly disappear.
Janelle's reading of the letter (in voice over) doesn't exactly match the written letter seen in Maren's hands.
While Maren shoplifting in Indiana 1988, customers complains "What kind of grocery store runs out of Lunchables". Lunchables as a brand was introduced in Seattle 1988 and nationally 1989.
As of 2024, Actor Timothée Chalamet has no real tattoo's, yet he sports them in this film. In the late 1980s, it was not very popular or fashionable for young men to have tattoo's. At that time period, it was usually older men who served in the military, had been to prison, worked as a carny, or was a possible musician/rock star.