Following the scene where Elsie leaving a voice text for Bernard, Bernard goes to see Dolores. When Bernard brings Dolores online, her lips are light red. Right after, the camera shows Bernard and then shows Dolores again. Now her lips are intense red. After a few conversations and change of views, her lips are back to light red.
When first Dr.Ford draw pyramid in order to explain steps to concussions, the bottom parts are small,but in the next shot,they become significantly bigger.
When Ashley and Elsie arrive where the campers talking about chopping wood, they are meant to be in a frozen state. When Elsie talks about the woodchopper gone missing, the guy on the left is looking over his shoulder. Then when Elsie is talking about one person who is authorized to handle the axe, that same guy is now facing forward.
Right before Ashley points out, that the carving on the wooden turtle shell is the Orion constellation, you can see in a closeup, that Elsie is already holding the wooden turtle shell the right way. In the following shot she does not rotate it. Then, after that, the shell is suddenly turned upside down.
Teddy claims Wyatt was his Sergeant in the Army. A flashback shows Teddy wearing a Sergeant's jacket, with Wyatt wearing a Corporal's jacket.
Before Dolores starts to read aloud from Alice's Adventures in Wonderland, a shot of the page she is reading from is shown. Later, as she continues to read, she turns the page several words before she reaches the end of that page.