Corrected entry: The Elks Lodge down the street from Ennis and Alma's apartment is numbered 129. Elks Lodge 129 is actually located in Washington Court House, Ohio.
Corrected entry: Carhartt did not put their symbol on the outside of their clothing in the 1960's, 70's and 1980's, yet Ennis is wearing a Carhartt jacket with the symbol on the front.
Corrected entry: In the opening scene of the film, set in 1963, several shots show a beat-up, rusty white pickup truck abandoned in a field. The truck is a 1963 Chevy, which would have been brand new at the time.
Corrected entry: When Jack and Ennis reunite for the first time in four years, and they are kissing at the bottom of the stairwell, Ennis' shirt becomes unbuttoned and disheveled (several buttons are undone and his undershirt is visible). In the next shot it's completely buttoned and unwrinkled.
Corrected entry: Different postcards: The mountain on the picture postcard that Ennis initially receives from Jack is a different mountain that is pictured on the postcard in the final scene of the movie that Ennis has saved in his closet over the two shirts that he took away from Jack's parents' home.
Corrected entry: The postcard that Ennis initially receives from Jack is dated September 1967. Not only does the date stamp not show the day the card was mailed, just the year, but also there is no ZIP code on the address. The USPS began requiring ZIP codes on July 1, 1963, and this post card - mailed more than three years later - never would have been delivered without a ZIP code.
Corrected entry: The film's unexpected success at the box office has been attributed, at least in part, to the free publicity generated by the plethora of gay-cowboy jokes on late-night TV.
Corrected entry: When Ennis goes up to Jack's boyhood bedroom you see the area at the top of the stairs is empty. But when Ennis is in the bedroom and looks out of the bedroom towards the stairs there are clothes hanging along that wall.
Corrected entry: Where Jack and Ennis argue (in their last meeting) in Ennis' shots, it is a sunny day (you can even see shades in the ground), but in Jack's shots it is cloudy.
Corrected entry: Jack's daughter grew up in Riverton, Wyoming yet speaks with a Southern accent. While Jack is from the South, her mother isn't, and it's not very likely that she wold have picked up the accent growing up with only one Southern parent.
Corrected entry: When Jack hits Ennis in the face on the mountain, Ennis wipes his nose on his left sleeve. When Ennis find the shirts in Jack's closet, the blood is on the right sleeve.
Corrected entry: Despite the movie taking place over a 19 year span, the director (and make-up department) made no effort whatsoever to age the characters even a single day.
Corrected entry: Near the beginning of the film, a freight train passes by. It is without a caboose. Cabooses were removed from North American freight trains only in the 1990s.
Corrected entry: At the end of the movie, when Ennis enters his trailer, the door is hinged on the left, causing it to swing clockwise. When he later opens the door from the inside, the door is hinged on the opposite side, causing it to swing counter-clockwise.
Corrected entry: In the last meeting between Ennis and Jack on Brokeback Mountain, Jack has had a moustache for several years. In one closeup shot of Jack's face, he is without a moustache, and then the next shot is of him having one.