Continuity mistake: After she throws up, Melanie brings Cathy back out from the bathroom and the scales on the table and the curtains behind them are very well lit. No one turned off any lights, but a few shots later when the birds start the next attack Melanie stands and the scales and curtain are in the dark. (01:40:10)????
Continuity mistake: When we first see the three-branched lamp to the left of Annie's couch one branch is facing the camera and two are behind the lamp. Now, as she sits sipping her brandy the lamp has been reversed with the lone branch in the back facing the wall. It's much easier to see if you look at the branch in the lampshade. (00:41:10 - 00:43:30)????