In the scene where Mirabelle is at her parents home in Vermont and takes a phone call from Ray, the camera cuts to a shot of her mother sitting at the dining room table. Behind her mother, green, leafy trees are visible through the windows, even though everything outside the house was covered in snow when Mirabelle first entered the house.
Early in the film, the camera pans up and we see Mirabelle through her bedroom skylight window. The bedroom is clearly positioned about ten feet or so from the left wall of the apartment, suggesting another room between it and the left wall. Yet in a later shot from the ceiling, when Mirabelle lies in bed with depression, the left wall is right up against the bed and there's a window there looking outside.