Character mistake: When confronted by bears along the trail, Bryson identifies them as "Grizzly Bears", but the only bears that exist along the Appalachian trail are black bears. Grizzly are only in the Mountain states like Montana and Wyoming, and Alaska.
A Walk in the Woods (2015)
1 character mistake - chronological order
Directed by: Ken Kwapis
Starring: Robert Redford, Emma Thompson, Nick Nolte, Mary Steenburgen
Continuity mistake: When Steven and Bryson are at Enterprise, the sweat on Steven's shirt changes between shots.
Catherine Bryson: Have you actually thought this through at all?
Bill Bryson: Of course not.