During the scene in the kitchen when Michael is telling Amanda to leave, a shotgun keeps appearing and disappearing behind them leaning in front of the window.
Even after Amanda puts her bra on twice before leaving the house, when she is raped later on in the movie, she has no bra on at all.
After Michael tells Amanda to get dressed to flee town, she is seen putting on her bra twice.
When Michael wakes up in the hospital after his nightmare (0:13:33), the life signs monitor next to his head is flat-lined, as though it's not hooked up, but an intermittent beep can still be heard.