Continuity mistake: In the scene with the policeman, Melanie suggests that she should stay for the night. Look closely at the mantle above the fireplace to in the right of the picture there is a jar with something sticking out of it. In the previous shot this jar is empty. (00:55:55 - 00:57:45)????
Continuity mistake: At the beginning, before Melanie walks behind the newsstand, it's an overcast day and she doesn't cast any shadow. As she emerges from the other side of the newsstand she casts several shadows against the wall and floor. The other people walking in front of the pet store are also casting shadows in several different directions. Throughout the film there are numerous changes regarding the casting of shadows between shots. (00:02:00)????
Continuity mistake: In the beginning of the movie when Mitch catches the yellow bird under his hat take a good look at the injury (subungual hematoma) he has under his left thumb nail. It takes weeks for these to go away, but Mitch's is gone when we see his left thumb again as he holds Melanie in the kitchen. (01:02:15)????
Continuity mistake: As the birds gather on the monkey bars behind Melanie she looks to her right and straight up and sees one lone bird flying past a television antenna. This is incorrect because first of all she's looking up to high and second we've seen in that direction and there is no house there, just a hill. The house is across the street. (01:11:10 - 01:33:05)????