Anachronisms: The Boy Scouts (Kinsey and his friend) are wearing the World Crest emblem which did not exist in the late teens when this scene supposedly took place.
Revealing mistakes: When young Kinsey argues with his father in the general store, the actor's prosthetic nose is extremely visible, several shades darker than his skin with wrinkly edges
Anachronisms: The newspaper headlines about Kinsey's first book in the late 1940s are pasted onto current newspapers. Just above one of the headlines we see a story about the New York Mets and the Houston Astros. These teams did not exist in the late 1940s.
Miscellaneous: When Kinsey and his wife are in the woods in New England one afternoon, they hear a whippoorwill, but the whippoorwill is a nocturnal bird.
Factual errors: The credits wish to thank the "University of Indiana". The correct title of the school is "Indiana University", there is no University of Indiana.
Audio/visual unsynchronized: Kinsey is talking with reporters upon arriving in New York and his dialogue does not match up with the shot of him.