Revealing mistake: The views to the right and left of the truck on the road did not flow in the manner expected if they were actually there (as opposed to using a green screen). Also, as soon as a "stop" sign could be seen to the right, the camera shifted to the driver, who kept driving as though the stop sign was not there. The structures to the right of the truck were blue but became white when the camera shifted to a front view (not using a green screen). (00:01:20)
Continuity mistake: Ishmael shots Karim in the right side of the stomach, but the wound moves to the left side.
Deliberate mistake: Considering the position of the surveillance camera (height and angle - almost parallel to the side of the building as well as to the sidewalk), plus the lens being indented within the outer frame, it would not have been able to capture a view of Redd on the sidewalk below like it did. (00:24:40)
Factual error: The film gets basic physics wrong while trying to depict relativity. Buzz Lightyear leaves T'Kani Prime for a trip around its sun, travels with near-light speed, and returns four years later. This could only have happened if T'Kani Prime's sun were at least two lightyears away! It gets more ridiculous. Buzz's last trip takes 26 years, even though he has traveled at faster-than-light speed. Overall, T'Kani Prime is experiencing either a mysterious time slow-down or a rapid orbit expansion.
Deliberate mistake: A camera situated behind a front passenger seat of a vehicle could not capture a clear image of the front seat passenger's face (James') in the rear view mirror and then slightly alter its angle to capture the driver's (Mike's) face in the same rear view mirror. (00:21:25)
Continuity mistake: The man picks up his duffel bag and swings it over his shoulder, but does not use its strap. He runs through the woods, and the strap is over his shoulder. Just before he runs onto the beach, he swings his bag over his shoulder, as if he does not use the shoulder strap in the woods. (00:01:40)
Factual error: The movie is set in the Northern Great Plains of the United States, and the tribe is identified as Comanche, but the Comanche were located in the Southern Great Plains, across present-day northwestern Texas, eastern New Mexico, southeastern Colorado, southwestern Kansas, and western Oklahoma.
Other mistake: It had been (acid) raining for some time and a puddle along the curb was shown with brown (Fall) leaves in it. If the acid rain was dangerous enough to eat away human flesh, it should have been powerful enough to erode/destroy the fallen leaves soaking in the puddle full of acid rain. (01:02:10)
Audio problem: When the boy and the leader of Iceland are hammering in posts and the boy is complaining that he's the heir and shouldn't have to do manual labor, there are at least two times when bad wind flutter in the microphones can be heard. It sounds like the wind clips the volume level and the audio briefly cuts out. It happens on windy film shoots, as wind screens can only prevent so much and its obviously very windy in this scene. Why this wasn't caught in post is hard to say. This is audible on the video on demand version.
Suggested correction: No such problem exists on the UHD/Blu-ray release. I also did not notice it on the VOD release, so it could have just been an issue with your sound setup.
Factual error: The tank used by the German platoon is a Soviet T54/55, which didn't come into service until 1948, after the Lapland War had ended.