Deliberate mistake: When Clint Eastwood rides into town the first time,one of the buildings has tarpaper on the outside and doesn't seem to be from the same era.This is the first and last time that building is in any shots.
High Plains Drifter (1973)
1 deliberate mistake - chronological order
Directed by: Clint Eastwood
Starring: Clint Eastwood, Mitch Ryan, Marianna Hill, Mitchell Ryan, Verna Bloom
Continuity mistake: As Stranger [Eastwood] is bathing, Cali Traverse enters, in a rage, and pulls a gun. As she screams and fires at him, her open cleavage appears to change between partial to almost none, during the action shots.
The Stranger: You're going to look pretty silly with that knife sticking out of your ass.
Trivia: At the end of the film when the Stranger (Clint Eastwood) is riding out of Lago, he passes a midget who is painting a name on a tombstone. In the next shot you see two more tombstones to the left. The names on these are "Sergio Leone" and "Don Siegel."