Revealing mistake: Opening scene: in the first shot where the murder victim is fully visible and the camera zooms in a little, the supposedly dead victim is obviously breathing in (his chest is moving a lot). (00:01:05)
Revealing mistake: The protagonist is in the interrogation room. The clock on the wall shows 10:10, and stays that way throughout the scene, which lasts longer than a minute, close to two. (00:19:40 - 00:21:30)
Revealing mistake: Lucas Miller's card (what they use to mark him as suspect on their board) contains just a bunch of filler text, like "ipsum dolor tenderloin" "tempor t-bone lorem" in a daring fusion of random Latin words and cuts of meat. (01:08:30)