When Lucy asks the tour guide about an alternate ending he has his hands in his pockets but in the next scene he has his left hand in front of his chest.
When Lucy hits her head on the ladder the men are carrying after breaking the hourglass she hits the bottom plank of wood but in the next scene she hits the top plank of wood.
When Lucy hands West the list of names Lancaster gave her he holds it but in the next scene it is on the counter and he has one arm folded in front of him and the other on the counter.
In the scene after "one year later" where Margaret sees Lucy again, the watch Jack gave her is missing from her wrist; however, when she walks in the room with Winston a few seconds later to look at the hourglass one more time, the watch is suddenly on her wrist.
When the tour is looking at the costumes one lady is holding her camera up high but in the next scene it is down by her waist but in the next scene it is up high but in the next scene it is down by her waist but in the next scene it is up high.
When Lucy is first shown the hourglass, it's standing upright. She turns away from it to answer her cell phone and the hourglass can be seen behind her laying on its side. She walks towards the camera, blocking the view of the hourglass behind her. A few moments into her conversation there is a sound behind her that is supposed to be the hourglass falling over. She turns around to see it on its side. She then walks over to the hourglass and stands it upright, again.
A fifty-star US flag flies at Biltmore in 1947. The US flag did not have 50 stars until 1960.
The characters in 1947 are staying at the Inn at Biltmore. The Inn at Biltmore didn't open until 2001.
A number of pieces of modern film production equipment and materials are seen in 1947, or period-correct pieces are seen operating in modern ways.