The Moulin Ruse Affair - S1-E17
Revealing mistake: When April peeks over the rooftop, it's completely dark outside. Every time we see the inserted stock footage of the traffic down below, however, it's a filtered daytime shot. Not one of the cars has its headlights on. (00:11:40)
The Moulin Ruse Affair - S1-E17
Revealing mistake: Waverly opens a file full of papers with a small photo of April's contact clipped inside. When we see a close-up of the photo, we can also see that the page under it is part of a script treatment. Odd thing for a spy agency to keep on file. (00:18:40)