Continuity mistake: Julia's hair changes throughout the course of the episode. It's straightened then curly then wavy and so forth.
The Red Door - S2-E9
Continuity mistake: When Big Jim communicates to the military commander at the dome, he writes on his notepad, and shows "Me and my son" to the commander; yet when he returns to his car and looks at it again, it's written quite differently. (00:24:05 - 00:24:45)
The Red Door - S2-E9
Continuity mistake: When Pauline enters the dome through the lake, her hair and whole body is wet, when she enters the house her hair is not only dry, it is professionally styled. Maybe they were out in the sun long enough for Pauline's hair to dry but I doubt if they met a stylist along the way.
Continuity mistake: Hunter shows the military a sign which includes the word "castrophic" rather than catastrophic. Then after the kids question his loyalty he holds the sign up again, but this time the word is spelled correctly. (00:40:00 - 00:41:00)
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.
Suggested correction: All 4 of them were equally wet getting out of the lake; and all 4 of them were dry when they next appeared in the story - which could have been an hour or more later, depending on how far they had to walk.
DavidRTurner
And they met a hair stylist along the way?