Revealing mistake: The sequence at the start showing a "normal" day shows a coffee shop with the Flash supposedly running out with two coffee cups.When we see his day now without super speed, the shot of the coffee shop is just a continuation of the previous one, with the same guy walking through the door. In fact if you go back and look closely at the first shot, you can just see the edge of Barry, hidden behind another customer.
Revealing mistake: When Iris is sitting in bed recording the message for Barry, she is holding her iPhone so that the start button is on the left side, but the "video record" button appears on the right. Additionally, her right hand covers the speaker area of the phone fully, including the front facing camera. It is impossible for Iris to be recording the video live and reveals that the video footage was recorded ahead of time. The illusion that the video is being recorded by Iris live is further ruined by the fact that the room lighting is turned off in the scene, but the recording is well lit. (00:02:55)
