Corrected entry: In the scene at the beginning when Steven shreds Evelyn's party list he then goes to his desk and types a new list in an email, sends the email and leaves his desk. No problem there. However, the next shot is from behind the desk looking at the computer and there is a shadow of someone moving in the sunlight being cast on the computer and the desk. Steven is already out of the shot so it must be a crew member.
Corrected entry: When Sara is taking off her coat after she has almost fallen into the vat of blood, you can see her red shirt. All you can see is a plain red shirt, then it cuts to another view and there is a black strip of tape on it.