Goofs

Kate's jacket changes from purplish with a brown scarf when she arrives at the inn and speaks with the fleeing appraiser, to black with a green scarf when she opens the door and walks into the inn. This occurs at least one other time.

While Daniel is cooking pancakes he remembers hiking through the snow on his return to the inn. He's looking down at his feet in the snow, but he's not wearing any snowshoes. The next shot shows him from the right profile and he's wearing snowshoes.

From the beginning, the doors are plain glass on the outside of the inn and then are suddenly stained glass once someone enters.

While this appears to be a continuity goof, in fact this is because the stained glass doors are inside the entryway. You can see the outside doors briefly when Daniel enters the house at about 46 minutes in.

When Kate drove her Jeep up to the Inn, she rolled down her window to yell to the emulator who was getting into his car to leave. She then rolled it up. But when she got out, her window was open about 1/3 of the way. Later on in the movie(not sure exact scene), but the window was still down.

During the opening scene when Daniel walks up to the Inn. Also when he observes Lily and Charles on the porch right before he is struck from behind. You can see two disposable coffee cups sitting on the bases of the columns of the porch.

At the very beginning of the movie, Daniel looks at his pocket watch. The maker of the watch shows Charles-Hubert, Paris. That watch brand was started in 1990 and couldn't be in the time period Daniel was in at that point in the movie.

When Daniel and Rafferty are playing chess, Daniel beats Rafferty by moving his knight into Rafferty's king. This is an illegal move because Daniel never declared "check". Thus, any move by Rafferty that wouldn't save his king, would be an illegal move.