Other mistake: At the beginning when the plane is flying, it appears to crash into the dome from the outside. The curve of the Dome goes from the top right to bottom left and the plane crashes from the left so it is on the outside. But the wreckage falls down inside the Dome.
Suggested correction: The plane was always inside the dome. When we see Barbie and Joe at the dome wall, the camera angle changes to the opposite side. We see Barbie looking up at the plane as it crashes into the inside wall, which he wouldn't have been able to do if the plane was outside and in front of him.
Blue on Blue - S1-E5
Other mistake: Considering Angie just ran home barefoot, the bottoms of her feet are incredibly clean as she runs up the stairs of her house.
Other mistake: When big Jim is riding in the boat, the registration numbers are prefixed with NC - North Carolina, where the show is filmed. But it's supposed to be in Maine.
Other mistake: The temperature is dropping and everyone is bundling up to stay warm, yet when talking to Melanie, we can see Pauline is still wearing her sandals.
Suggested correction: That's a choice by the character. I've seen many people wearing sandals throughout the winter.
Other mistake: James 'Big Jim' Rennie shoots at a picture of him and his son sitting on a table next to a yellow wall. After he shoots the picture he picks it up. When he does that there is no bullet hole in the wall behind the picture. (00:43:00)