Unforgiven
When a sex worker is disfigured by a pair of cowboys, the town sheriff (Gene Hackman) isn't happy about the act of abuse. Hackman's character can be seen wearing pants with belt loops in one scene, but belt loops only became popular in the 1920s. Unforgiven takes place in 1880.
The Tudors (2007)
Fashion was a notable part of The Tudors, a Showtime drama focusing on the early years of King Henry VIII's nearly forty-year reign. In the show, women donned ruff collars around their necks. Western European women would probably not have worn this accessory in the 1500s—the look was actually considered scandalous for its time.