Corrected entry: Near the end of the movie when they come for Tristan he says take me to the woods. Col. Ludlow comes out and Tristan walks over to him. When Col. Ludlow raises his shotgun there is a long bead of sweat running down the right side of his face, the scene cuts away and when it cuts back as he shoots the shotgun the sweat is gone.
Corrected entry: When Tristan receives a letter from Alfred in which he tells that Susannah is dead, it is obvious that the sheet of paper in Tristan's hands is not a letter. When he opens it, it looks like an add or even a time table or so, and when he reads it, you can see through it - it says something like "Western Union" in the headline with large and bold fonts. It is very unlikely that Alfred, a respected, wealthy congressman, would have written a death message on randomly chosen paper. (01:52:10)
Corrected entry: William Ludlow writes to his wife on April 13, 1913. She replies to that letter and includes that Samuel and Susanna will be visiting William "this summer". Yet the events involving Samuel and Susanna at William's home include two occasions where Samuel voices concerns for the events taking place in Europe at the start of World War One in 1914. He and Susanna have not been at William's home for a full year as Samuel speaks with Tristan about Susanna, her ideas and their plan to "not wait for marriage" as if it is all fresh and new, and does so after the first discussion of the war. It must be 1914. The only other explanation is that mail takes about six months to cross the country at this time, and Isabelle was replying in the fall of 1913, which would be ridiculous, as even then such mail took just weeks at worst to arrive.
Corrected entry: In the scene when Tristan's wife Isabel is being killed, Tristan screams out his pain and then you see his teeth-filling. I don't think that there were any teeth-fillings at that time. (01:39:40)
Corrected entry: When Susannah arrives at the ranch Pet and Isabel stand by the stairs. However, a bit later Susannah goes to the garden where Isabel Two is and greet her like they were meeting for the first time. It is very unlikely they weren't introduced to each other on arrival. (00:11:45)
Corrected entry: Susannah first comes to the ranch during the summer of 1913. In the garden, Isabel Two tells Susannah that she is 13 years old. If you pay attention to the dates in the letters written, Tristan has left Susannah on his journey in 1918 and sends a letter saying he has become a hunter in 1919. The voice over by Stab then describes "many years" that Tristan is still supposed to be absent after his last letter before he returns, however when he marries Isabel Two she is said to be 20 years old. That would mean he would have had to come home in 1920 at the latest.
Corrected entry: When Brad Pitt is in the army tent in France grieving over his brother's death, it is night. In the film, we see the Native American in Montana is simultaneously having a spiritual moment in his teepee and it is night there as well. The time difference between Montana and France is 10 hours; it cannot be night in both places simultaneously.
Corrected entry: In the scene where Isabelle is killed, Tristan attacks the policeman, when they tackle him to the ground he is hit with that little billy club, but if you notice you can see the club bending before and after it hits Tristan.