Continuity mistake: Simi approaches a window that does not have any noticeable protective/security bars on it. Seconds later, there are horizontal and vertical security bars on the window. (00:52:12)
Continuity mistake: Simi enters the bedroom and the upper half of the bedspread is smooth. Aunt Claudia is holding a book with both hands, so she is not touching the bed. The front (somewhat aerial) view of the bed shows that the upper part of the bedspread has multiple ripples. (00:17:55 - 00:18:42)